Sapwtik Island

Sapwtik, which means “small land,” is a tiny volcanic island located directly north of Kolonia and 0.5 km northwest of Lenger. Seen in profile, the island resembles a large submarine, leading some locals to nickname it “Submarine Island.” Sapwtik is jointly-owned by the Eschiet family, which has some small houses at the eastern end of island, and their in-laws, the Adams family. During the 1880s, Sapwtik was purchased by Jan Stanisław Kubary, a Polish naturalist and ethnographer, along with a large piece of land east of what is now Kolonia — a place called Mpwoampw. In 1896, after returning from an extended absence and finding his homestead in ruins and his claims on the properties questioned by the Spanish authorities, Kubary committed suicide. Mpwoampw and Sapwtik were then purchased by Dominique Escheit, a Belgian trader who had operated in the Marshall Islands before coming to Pohnpei. Between 1914 and 1945, the Japanese were in charge and a great deal of land was seized by the military for defensive purposes — including Sapwtik. Like its neighbor, Lenger, Sapwtik was fortified in the late 1930s in preparation for an Allied invasion that never came. The primary features are found on the low hilltop and at the western terminus.

Sapwtik Island Attractions

Japanese Wharf

Visitors to Sapwtik will want to make their first stop at the Japanese Wharf, a 296 meter-long (324 yd) basalt structure that juts out from the island’s southwest coast all the way to the edge of the reef. With the exception of the very end, which has sustained some damage from waves, the wharf is in excellent condition almost 80 years after it was built — a testament to the quality of Japanese construction during the colonial period (and the use of the highly stable tanizumi, or herringbone, style of stonework). The wharf connects with the coastal road, also built by the Japanese, which skirts the mangroves from one end of the island to the other. The road is built above a stone retaining wall that stabilizes it against the swampy mangrove environment. Retaining walls also run along the opposite edge to prevent erosion from the steep hillside above.

Snorkeling & Swimming

All the ocean areas around Sapwtik belong to the Sapwtik Marine Protected Area, a sanctuary protected by legislation. The snorkeling off the reef walls at the end of the wharf is quite nice with generally good visibility and lots of fish. Just start at the wharf and follow the reef wall in either direction (the further from the island, the better it gets). The best place to swim is also right off the end of the wharf. Shallow areas on either sides of the wharf are silty.

A large banyan tree forms the flag of the submarine at Sapwtik Island, Pohnpei, Federated States of Micronesia (FSM)

Command Center & Barracks

The central hill is most easily accessed from the maintained Japanese coastal road. About 60 meters east of the wharf, hikers can cut off the road and up the slope (another 60 m) to reach the summit. The Adam’s family keeps the hill extremely tidy, cutting the grass, planting flowers, and keeping the historical features free of vines and brush. The place has a manicured, park-like feel and a stunning view of everything to the south. One of the best preserved yabane-tanizumi style rock walls on Pohnpei runs the length of the hilltop on the south side with two breaks, where earthen ramps lead up to the top. Two foundations were likely a command center and a barracks for personnel stationed on the island. The northern foundation is the largest and has seven sets of steps leading up to where the floor once was. The structure itself would have been wooden, while only the support posts and the lower parts of the walls were concrete. Two large concrete cisterns are connected to the two foundations (check out the bullet holes from Allied strafing). At the north end of the complex, the hill road begins, cutting right through the hill and running all the way to the gun batteries at the northwestern end of the island. Some of the road is currently impassable due to piles of felled trees and branches, but it’s impressive none the less.

To visit the gun batteries, it’s best to return to the coastal road and hike northwest all the way to the end. The road is well-kept and easy to follow.

Magazine Complex / Shell Storage

From the cut-off point for the hilltop, it’s about 150 m (164 yd) along the road to the first point of interest, a high-walled magazine complex for heavy ordnance similar to the one at the coastal gun battery on Lenger. The surrounding basalt rock wall (also tanizumi style) runs north and then curves sharply back to the south to enclose the foundation of the magazine structure, which is about 6 meters long. On the inside of the enclosure, the walls are steeply sloped. There is no roof, but the entire feature may have been covered with canvas and camouflaged during war-time. The entrance is narrow — less than 2 meters wide — and curved.

Coastal Gun Battery

About 12 meters northwest of the magazine is the first of four 75 mm field gun stations. These are similar to the structures on Lenger, though the Sapwtik sites are more primitive with less concrete and more earthen features. No guns remain, and two of the sites may have been decoys that never had guns installed. Guns would have protected the primary entrance to Kolonia at Pweitik Passage (Kepidauen Pweitik) to the northwest. A footpath continues north past the gun emplacements and then turns southeast to follow the contour of the hill. Along this are a few stone rifle pits or machine gun emplacements. Old Japanese beer bottles litter the forest.

NOTE: The ruins of a searchlight and a tunnel, cutting completely through part of the central hill, also exist on Sapwtik, but we did not have the opportunity to locate them during our brief period of fieldwork on the island. If you’re interested in seeing these features, contact Richie Adams at (+691.320.5735). The Pacific Wrecks website has photos of both.
  • To obtain permission to visit, call Richie Adams (Adam’s Brothers Corporation) at +691.320.5735 or call Ace Hardware’s office at +691.320.2723.

ACKNOWLEDGMENTS

The Sapwtik Island information would not exist without the cooperation of the Adams family.

Eco-Adventure Map Guides >> Lenger Island >> Sapwtik Island Attractions

Temwen Vicinity GPS Data

Downloadable GPS Data Files

The following files contain all the packaged GPS data for each of the featured locations in the Temwen Vicinity Eco-Adventure Map Guide.

Three file types are provided. KMZ and KML files are compatible with Google Earth. KML is compatible with Google Maps. GPX files can be imported into ArcGIS (a professional mapping application) and some hand-held GPS devices.

NOTE: All files are free to the public and can be used for any purpose without permission.

Temwen Island Coastline (2015)

Temwen Island Mangroves (2015)

Temwen Island Contour Lines (2015)

Temwen Island Roads (2015)

Temwen Island Trails & Routes (2015)

Temwen Island Points of Interest (2015)

Dolopwuropwur Gun Battery (2015)

Coordinates

The following coordinates correspond with sites featured on the Temwen Vicinity Eco-Adventure Map Guide. It is our dream to eventually create a Pohnpei GPS app that could be uploaded to smartphones and other devices, but for now, these points of interest can be entered manually in a hand-held GPS device as needed.

NOTE: All GPS devices have a margin of error. That margin increases with interference — when there is a thick canopy of trees, during bad weather, or when mountains obstruct the satellite link. The geosynchronous satellites employed when navigating on Pohnpei are located low on the southwestern horizon, such that maintaining a strong connection while hiking on the northeast side of a given mountain range can be difficult. Coordinates on the northeastern slopes of mountains are less accurate than in other locations.

Temwen Island

Temwen Causeway South Bridge —- 6.843731° 158.313411°
Temwen Causeway North Bridge —- 6.845294° 158.314911°
Peipas Island (Approx. location) —- 6.848979° 158.315855°
Salong Point —- 6.856344° 158.322675°
Temwen Elementary School —- 6.851509° 158.329239°
Current Nahnmwarki’s Residence —- 6.851064° 158.332056°
Japanese Wharf —- 6.855733° 158.332092°
Turn-Off to Nan Madol Trail —- 6.846941° 158.328562°
Nan Madol Trail Parking —- 6.845865° 158.330689°
Nan Madol Trailhead —- 6.844408° 158.330671°
End of Temwen Road / Beginning of Footpath —- 6.846342° 158.319744°
Causeway Store —- 6.845268° 158.314783°

Nan Madol Ruins

Nan Madol Trailhead —- 6.844408° 158.330671°
Peinkitel Perimeter Wall North Corner —- 6.844326° 158.331118°
Peinkitel Entrance —- 6.844018° 158.330501°
Peinkitel Tomb —- 6.844041° 158.330894°
Central Peidoh Islet —- 6.844092° 158.331846°
Sapwohng Islet West Corner —- 6.843660° 158.332228°
Huge Tree —- 6.843828° 158.333042°
Central Peilapalap Islet —- 6.842964° 158.332899°
Central Rasalap Islet —- 6.843384° 158.333474°
Central Pahseid Islet —- 6.843888° 158.333827°
Central Usendau Islet —- 6.844284° 158.334102°
Central Dau Islet —- 6.844609° 158.335067°
Nan Douwas Islet Entrance —- 6.844533° 158.335524°
Nan Douwas Islet Sakau Stones —- 6.844560° 158.335479°
Nan Douwas Islet Sakau Stone —- 6.844547° 158.335663°
Nan Douwas Islet Central Tomb —- 6.844535° 158.335799°
Nan Douwas Islet North Tomb —- 6.844698° 158.335777°
Nan Douwas Islet South Tomb —- 6.844390° 158.335724°
Central Pohn Douwas Islet —- 6.845042° 158.335810°
Central Kohnderek Islet —- 6.845558° 158.335205°
Central Pwalahng Islet —- 6.845051° 158.334678°
Kahnimweiso Gate (approx.) —- 6.843599° 158.337261°
Nan Mwoluhsei Sea-wall Entrance —- 6.844190° 158.336966°
Central Peikapw Sapwawas Islet —- 6.843553° 158.334780°
Central Pwilak Islet —- 6.843159° 158.333909°
Central Peinior Islet —- 6.842824° 158.334263°
Peinering Islet Entrance —- 6.842123° 158.333784°
Central Perektuhke Islet —- 6.841853° 158.332661°
Central Pahn Katau Islet —- 6.841491° 158.332450°
Central Dapahu Islet —- 6.842452° 158.332358°
Central Usennamw Islet —- 6.842585° 158.331411°
Central Peitaup Islet —- 6.841846° 158.331174°
Central Dekehtik Islet —- 6.841530° 158.331148°
Dorong Islet Perimeter Wall North Corner —- 6.840986° 158.329394°
Lehnkei (Pool) —- 6.840853° 158.331381°
Central Peikapw Islet —- 6.841907° 158.330170°
Idehd Islet Northwest Entrance —- 6.841308° 158.330293°
Dolen Idehd / Midden —- 6.841081° 158.330336°
Nan Samwol’s Hole, Idehd —- 6.841252° 158.330532°
Idehd Islet Northeast Entrance —- 6.841288° 158.330555°
Isokelekel’s Slingstones, Idehd —- 6.841194° 158.330428°
Pahn Kadira Islet Sokehs Corner —- 6.841195° 158.329971°
Pahn Kadira Islet Katau Corner —- 6.840766° 158.329374°
Pahn Kadira Islet House Foundation —- 6.840986° 158.329394°
Temple of Nankieilmwahu, Pahn Kadira —- 6.841427° 158.329366°
Saudeleur’s House Foundation, Pahn Kadira —- 6.841484° 158.328948°
Pahn Kadira Islet Southwest Entrance —- 6.841074° 158.329119°
Pahn Kadira Islet Sakau Stone —- 6.841186° 158.329195°
Pahn Kadira Islet Sakau Stone —- 6.841220° 158.329145°
Pahn Kadira Islet Sakau Stone —- 6.841266° 158.329161°
Pahn Kadira Islet Sakau Stone —- 6.841305° 158.329112°
Pahn Kadira Islet Sakau Stone —- 6.841333° 158.329119°
Pahn Kadira Islet Madolenihmw (Likapwar) Corner —- 6.841558° 158.328740°
Pahn Kadira Islet Kitti Corner —- 6.842035° 158.329364°
Saudeleur’s Bathing Area, Pahn Kadira —- 6.841207° 158.329844°
Central Pahn Kadira Islet Annex —- 6.841268° 158.328655°
Central Wasao Islet —- 6.841982° 158.328645°
Central Reitik Islet —- 6.841565° 158.328299°
Central Peilam Islet —- 6.840527° 158.328599°
Central Kelepwel Islet —- 6.840592° 158.329081°
Central Peinmwek Islet —- 6.840670° 158.329624°
Central Palakapw Islet —- 6.840433° 158.330480°
Central Pohnkeimw Islet —- 6.840469° 158.326021°
Mweiden Kitti (Opening) —- 6.839358° 158.327282°
Central Pahnmweid Islet —- 6.839566° 158.326991°
Central Mweid Islet —- 6.838856° 158.327817°
Boulder Wall, Pahnwi Islet —- 6.837491° 158.328793°
Upper Pahnwi Islet —- 6.838243° 158.329723°
Mweiden Weliwel (Opening) —- 6.838459° 158.330260°
Kepinehd Islet —- 6.838917° 158.330884°
Mweiden Nahnsapwe (Opening) —- 6.839264° 158.331517°
Pikalap Islet —- 6.839387° 158.331645°
Mweidalap (Opening) —- 6.839462° 158.331846°
Lemensai Islet —- 6.839657° 158.331986°
Namwenkau (Pool) —- 6.839964° 158.332334°
Central Lemenkau Islet & Sakau Stones —- 6.840380° 158.332956°
Lemenkau Islet West Entrance —- 6.840332° 158.332482°
Pahn Mwasangapw Burial Chamber —- 6.841272° 158.334303°
Angeir Burial Chamber —- 6.841597° 158.334853°
Sapwuhtik Burial Chamber —- 6.841978° 158.335596°
Lukepen Kerian —- 6.842601° 158.336477°
Kerian Islet Southwest Entrance —- 6.842727° 158.336632°
Kerian Islet Central Tomb —- 6.842821° 158.336771°
Kerian Islet North Tomb —- 6.842859° 158.336748°
Kerian Islet South Tomb —- 6.842776° 158.336799°
Barge Wreck, Kerian —- 6.842461° 158.336651°
Huge Sakau Stone, Kerian —- 6.842687° 158.336623°

Dolopwuropwur Battery

Turn-off to Dolopwuropwur Trailhead —- 6.850746° 158.329126°
Dolopwuropwur Trailhead —- 6.848025° 158.325991°
15 cm Gun #1 —- 6.849032° 158.325672°
15 cm Gun #2 —- 6.848915° 158.325796°
15 cm Gun #3 —- 6.848777° 158.325841°
15 cm Gun #4 —- 6.848569° 158.325807°
Northern Ammunition Magazine —- 6.848901° 158.325669°
Southern Ammunition Magazine —- 6.848668° 158.325755°
Unknown Japanese Foundation —- 6.848775° 158.325632°
Stone Tower Steps —- 6.848635° 158.325571°
Japanese Stone Tower —- 6.848609° 158.325540°
Dug-Out —- 6.848583° 158.325497°
Japanese Trench North End —- 6.848767° 158.325589°
Japanese Trench Intersection —- 6.848156° 158.324919°
Unknown Japanese Structure —- 6.848138° 158.325148°
Japanese Trench South End / Path Intersection —- 6.847964° 158.323712°
Cross Island Footpath South End —- 6.846107° 158.322737°
Cross Island Footpath North End —- 6.851214° 158.325296°
Dolopwuropwur Peak —- 6.848742° 158.325911°

Around Temwen

Pohnpei Agriculture & Trade School (PATS) —- 6.843103° 158.307976°
Marine Environmental Research Institute of Pohnpei (MERIP) —- 6.843932° 158.308811°
MERIP Apartments —- 6.843340° 158.308811°
Mwudoketik Island —- 6.841213° 158.319636°
Mwudokalap Island —- 6.839816° 158.317841°
Ulidei Island —- 6.841085° 158.316101°
Dauen Moahk (Channel) West End —- 6.845671° 158.314698°
Dauen Moahk (Channel) East End —- 6.840842° 158.328417°
Namwen Nahnningi Stingray Reserve —- 6.833504° 158.322414°
Nahnningi Island —- 6.831781° 158.326057°
Mall Island —- 6.829152° 158.322269°
Nahnningi Snorkeling Pool —- 6.828426° 158.326448°
Nahnningi Dive Site —- 6.826786° 158.324659°
Straight Wall Dive Site —- 6.832236° 158.334271°
Pahn Nahkapw Bridge Dive Site —- 6.840180° 158.342650°
Kepidauen Nahkapw (Reef Passage) —- 6.840793° 158.342252°
Nahkapw Island —- 6.843777° 158.344200°
Pahn Nahkapw Wall Dive Site & Snorkeling —- 6.843689° 158.342220°
Nipaden Nahkapw Snorkeling Spot —- 6.846010° 158.346045°
Dekehtik Island —- 6.848340° 158.348134°
Dekehtik Island Snorkeling Spot —- 6.847929° 158.346902°
Namwen Na Stingray Reserve —- 6.853543° 158.352856°
Na North Coast Camping, Swimming & Snorkeling —- 6.852748° 158.356608°
Nahpali Island —- 6.861427° 158.355330°
Dekehmwahu Island —- 6.860339° 158.359588°
Nahpali Island Snorkeling —- 6.860600° 158.353214°
Nahpali Island Searchlight Drum —- 6.862617° 158.356630°
Nahpali Island Gun Station #3 —- 6.862775° 158.356153°
Nahpali Island Gun Station #2 —- 6.862848° 158.355992°
Nahpali Island Gun Station #1 —- 6.862914° 158.355861°
Nahpali Island Japanes Coastal Foundation —- 6.862591° 158.355395°
Nahpali Island Beach —- 6.862192° 158.354946°
Nahpali Island Beach —- 6.863028° 158.355964°
Nahpali Island Japanese Coastal Foundation —- 6.862075° 158.354758°
Nahpali Island Japanese Diesel Engine —- 6.861961° 158.354814°
Nahpali Island Japanese Foundations —- 6.861690° 158.354699°
Nahpali Island Japanese Foundation —- 6.861393° 158.354617°
Nahpali Island Japanese Water Tank —- 6.861250° 158.354561°
Nahpali Island Japanese Coastal Water Tank —- 6.861402° 158.354411°
Nahpali Island Gateway Tree —- 6.861229° 158.354377°
Nahpali Island Japanese Cistern —- 6.861601° 158.354808°
Dekehmwahu Beach —- 6.861424° 158.359777°
Na Dive Site —- 6.846678° 158.365113°
Nanwap Corner Dive Site —- 6.871079° 158.356093°
Kepidauen Deleur (Reef Passage) —- 6.863361° 158.343756°
Madolenihmw Bay —- 6.861248° 158.306274°
Nahpali Surf Break —- 6.867134° 158.361762°
Nan Madol (Kepidauen Nahkapw) Surf Break —- 6.839137° 158.340387°

Downloads >> GPS Central >> Temwen Vicinity GPS Data

U & Northern Madolenihmw GPS

Downloadable GPS Data Files

The following files contain all the packaged GPS data for each of the featured locations in U & Northern Madolenihmw.

Three file types are provided. KMZ and KML files are compatible with Google Earth. KML is compatible with Google Maps. GPX files can be imported into ArcGIS (a professional mapping application) and some hand-held GPS devices.

NOTE: All files are free to the public and can be used for any purpose without permission.

Dolen Nahnsapwe Hike (2015)

Kupwuriso Mountain & Japanese Gun Battery Hike (2015)

Marine Parks in Awak Pah (2015)

Pahntakai Caves & Waterfall Hike (2015)

Timwen Men, Dolakapw & Pohn Tehnmei Hikes (2015)

Coordinates

The following coordinates correspond with sites featured on the Greater Nett & Western u Eco-Adventure Map Guide. It is our dream to eventually create a Pohnpei GPS app that could be uploaded to smartphones and other devices, but for now, these points of interest can be entered manually in a hand-held GPS device as needed.

NOTE: All GPS devices have a margin of error. That margin increases with interference — when there is a thick canopy of trees, during bad weather, or when mountains obstruct the satellite link. The geosynchronous satellites employed when navigating on Pohnpei are located low on the southwestern horizon, such that maintaining a strong connection while hiking on the northeast side of a given mountain range can be difficult. Coordinates on the northeastern slopes of mountains are less accurate than in other locations.

Awak Marine Parks

Awak Pah MP Entrance —- 6.965910° 158.250758°
Pein Ahi Entrance —- 6.966711° 158.251138°
Paieke Entrance —- 6.969853° 158.256294°
Awak Pah MP Dock —- 6.966470° 158.248785°
Pein Ahi Fish Pond —- 6.967572° 158.249929°

Dolen Nahnsapwe

Dolen Nahnsapwe Trailhead – Nett Approach —- 6.927169° 158.246675°
Dolen Nahnsapwe Trailhead – U Approach —- 6.918897° 158.270844°
Dolen Nahnsapwe Summit —- 6.909546° 158.260936°
Dolen Nahnsapwe Turn-Off from Lou Rahn Trail —- 6.923336° 158.249283°

Downloads >> GPS Central >> U & Northern Madolenihmw GPS Data

Nett & Western U GPS Data

Downloadable GPS Data Files

The following files contain all the packaged GPS data for each of the featured locations in Greater Nett & Western U.

Three file types are provided. KMZ and KML files are compatible with Google Earth. KML is compatible with Google Maps. GPX files can be imported into ArcGIS (a professional mapping application) and some hand-held GPS devices.

NOTE: All files are free to the public and can be used for any purpose without permission.

Marine Parks in Awak Pah (2015)

Dolen Eirike (2015)

Dolen Nahnsapwe (2015)

Lou Rahn Cave & Waterfall (2015)

Nan Kiepw & Na Malek Cave (2015)

Nan Koropwung Cliff, Waterfall & Caverns (2015)

Dolen Nett / Pohnlehr (2015)

Nanipil Vicinity (2015)

These files include Liduduhniap, Sengnaip, Likei, Pahn Pwet, and Nan Kiepw waterfalls, the Nanipil Bird Walk, the Swimming Pond, and another popular swimming hole in the area.

Coordinates

The following coordinates correspond with sites featured on the Greater Nett & Western u Eco-Adventure Map Guide. It is our dream to eventually create a Pohnpei GPS app that could be uploaded to smartphones and other devices, but for now, these points of interest can be entered manually in a hand-held GPS device as needed.

NOTE: All GPS devices have a margin of error. That margin increases with interference — when there is a thick canopy of trees, during bad weather, or when mountains obstruct the satellite link. The geosynchronous satellites employed when navigating on Pohnpei are located low on the southwestern horizon, such that maintaining a strong connection while hiking on the northeast side of a given mountain range can be difficult. Coordinates on the northeastern slopes of mountains are less accurate than in other locations.

Awak Marine Parks

Awak Pah MP Entrance —- 6.965910° 158.250758°
Pein Ahi Entrance —- 6.966711° 158.251138°
Paieke Entrance —- 6.969853° 158.256294°
Awak Pah MP Dock —- 6.966470° 158.248785°
Pein Ahi Fish Pond —- 6.967572° 158.249929°

Dolen Eirike

Relio Lengsi’s Residence —- 6.926688° 158.227910°
Dolen Eirike Trailhead —- 6.919570° 158.227397°
Sakau Plantation —- 6.917106° 158.227410°
Japanese Trench Network —- 6.915589° 158.230300°
Dolen Eirike Summit —- 6.915140° 158.231599°
Dol Rakied Summit —- 6.906234° 158.237645°

Dolen Nahnsapwe

Dolen Nahnsapwe Trailhead – Nett Approach —- 6.927169° 158.246675°
Dolen Nahnsapwe Trailhead – U Approach —- 6.918897° 158.270844°
Dolen Nahnsapwe Summit —- 6.909546° 158.260936°
Dolen Nahnsapwe Turn-Off from Lou Rahn Trail —- 6.923336° 158.249283°

Lou Rahn

Lou Rahn Trailhead —- 6.927169° 158.246675°
Lou Rahn Cave & Waterfall —- 6.918551° 158.253955°

Nan Kiepw & Na Malek

Nan Kiepw / Na Malek / Nahnalaud Nett Trailhead —- 6.918179° 158.214601°
Stream Crossing —- 6.917458° 158.215238°
Nahnalaud Turn-Off from Nan Kiepw Trail —- 6.910792° 158.217769°
Last House along trail —- 6.900363° 158.214973°
Na Malek Loop Turn-Off from Nan Kiepw Trail —- 6.897523° 158.213266°
Na Malek Loop Turn-Off from Nan Kiepw Trail —- 6.895756° 158.213144°
Na Malek Cave —- 6.895878° 158.211765°
Kiepw Waterfall —- 6.889668° 158.211740°
Nan Kiepw Overhang & Campsite —- 6.889639° 158.211035°

Nan Koropwung

Nan Koropwung Trailhead —- 6.925729° 158.254909°
Cliff & Waterfall —- 6.927155° 158.259679°
Cave 1 —- 6.927513° 158.259859°
Cave 2 —- 6.927877° 158.259142°
Cave 3 —- 6.927884° 158.259038°

Dolen Nett / Pohnlehr

Dolen Nett Trailhead 1 —- 6.968282° 158.230457°
Dolen Nett Trailhead 2 —- 6.965640° 158.234757°
Dolen Nett Trailhead 3 —- 6.959650° 158.225124°
Dolen Nett Trailhead 4 —- 6.969614° 158.228438°
Japanese Tunnel Entrance —- 6.965840° 158.228329°
Yam Plantation —- 6.965248° 158.228609°
Japanese Defensive Position —- 6.964007° 158.229053°
Japanese Trench Network —- 6.963868° 158.229051°
Japanese Trench Network —- 6.963073° 158.229706°
Japanese Trench Network —- 6.963105° 158.229949°
Japanese Trench Network —- 6.963125° 158.230125°
Japanese Trench Network —- 6.963025° 158.230332°
Pandanus Grove —- 6.961883° 158.230662°
Coconut Palm Grove —- 6.961188° 158.231013°
80 mm Field Gun —- 6.958862° 158.233030°
Rusted Barrels —- 6.958814° 158.233064°
80 mm Gun in Bunker —- 6.958838° 158.233535°
Machinegun Bunker —- 6.958741° 158.233545°
Bunker —- 6.958765° 158.233415°
Pohnlehr Summit —- 6.958226° 158.233346°
Japanese Mobile Radar Array —- 6.958767° 158.232402°

Sengnaip Waterfalls

Trailhead —- 6.920677° 158.204421°
Route Intersection —- 6.920647° 158.201060°
Sengnaip Cave —- 6.917556° 158.200460°
Sengnaip Waterfalls —- 6.917522° 158.200383°

Likei & Pahn Pwet Waterfalls

Trailhead —- 6.920677° 158.204421°
Route Intersection —- 6.920647° 158.201060°
Stream Crossing —- 6.919559° 158.198878°
Log Crossing —- 6.916577° 158.198932°
Route Intersection —- 6.916577° 158.198932°
Route Intersection —- 6.914373° 158.199648°
Route Intersection —- 6.904178° 158.192649°
Route Intersection —- 6.904178° 158.192649°
Likei Waterfall —- 6.903375° 158.189810°
Pahn Pwet Waterfall —- 6.902343° 158.192313°

Nan Kiepw Waterfall

Trailhead —- 6.919873° 158.206230°
Route Intersection —- 6.914373° 158.199648°
Nan Kiepw Waterfall —- 6.897512° 158.206958°

Liduduhniap Waterfalls

Trailhead —- 6.919915° 158.206706°
Upper Pool —- 6.918893° 158.206592°
Upper Falls —- 6.918891° 158.206557°
Lower Pool —- 6.918564° 158.206676°
Lower Falls —- 6.918695° 158.206572°

Nanipil Vicinity

Nanipil Bird Walk Trailhead —- 6.920677° 158.204421°
Nanipil Bird Walk Trail End —- 6.919559° 158.198878°
Hydroelectric Building —- 6.918222° 158.214670°
Japanese Pump Station —- 6.918404° 158.214481°
Swimming Pond Trailhead —- 6.922461° 158.215089°
Swimming Pond —- 6.922642° 158.215955°
Cable Bridge Swimming Hole —- 6.932656° 158.216346°

Downloads >> GPS Central >> Nett & Western U GPS Data

Lenger Island GPS Data

Downloadable GPS Data Files

The following files contain all the packaged GPS data for the Lenger Island Eco-Adventure Map Guide, including the island’s coastline, ocean depth info, ten meter contour lines, mangrove forests, roads and trails, land divisions, World War II features, modern features, and other points of interest.

Three file types are provided. KMZ and KML files are compatible with Google Earth. KML is compatible with Google Maps. GPX files can be imported into ArcGIS (a professional mapping application) and some hand-held GPS devices.

NOTE: All files are free to the public and can be used for any purpose without permission.

Lenger Island (2016)

Coordinates

The following coordinates correspond with sites featured on the Lenger Island Eco-Adventure Map Guide. It is our dream to eventually create a Pohnpei GPS app that could be uploaded to smartphones and other devices, but for now, these points of interest can be entered manually in a hand-held GPS device as needed.

NOTE: All GPS devices have a margin of error. That margin increases with interference — when there is a thick canopy of trees, during bad weather, or when mountains obstruct the satellite link. The geosynchronous satellites employed when navigating on Pohnpei are located low on the southwestern horizon, such that maintaining a strong connection while hiking on the northeast side of a given mountain range can be difficult. Coordinates on the northeastern slopes of mountains are less accurate than in other locations.

Southwestern Lenger

Barbosa’s Wharf —- 6.993799° 158.228531°
Former Barbosa Resort Site —- 6.994306° 158.229159°
Japanese Coastal Warehouse Foundation —- 6.994406° 158.229708°
Japanese Underground Crude Oil Complex Trailhead —- 6.994717° 158.229517°
Gate 1 – Crude Oil Complex —- 6.995515° 158.230239°
Japanese Storage Caves Trailhead —- 6.993890° 158.230359°
Japanese Concrete Plant Trailhead —- 6.994275° 158.230646°
Japanese Concrete Plant Equipment —- 6.994502° 158.230447°
Ballast Hill —- 6.994418° 158.230380°
Japanese Cave 1 —- 6.994567° 158.231047°
Japanese Cave 2 —- 6.994792° 158.230931°
Japanese Cave 3 —- 6.994894° 158.230736°
Japanese Cave 4 —- 6.994950° 158.230661°
Japanese Above-Ground Oil Tank —- 6.993772° 158.230847°
Japanese Above-Ground Oil Tank Foundation —- 6.993894° 158.230716°
Path Intersection Point —- 6.993445° 158.230835°

Southern Lenger

Japanese Machine Parts —- 6.993100° 158.231317°
Japanese Square Cistern —- 6.993406° 158.231139°
Japanese Aviation Fuel Tank Trailhead —- 6.993896° 158.231492°
Japanese Aviation Fuel Tank Tunnel Gate —- 6.994211° 158.231342°
Japanese Rectangular Cistern —- 6.994006° 158.231840°
Japanese Machinery & Wheels —- 6.993628° 158.231561°

Eastern Lenger

Stream Crossing —- 6.995612° 158.232389°
Banyan Wheel —- 6.996089° 158.232106°
Dolen Lenger Trailhead (Eastern Route) —- 6.995896° 158.232360°

Northeastern Lenger

Japanese Seaplane Hangar Ruin —- 6.997648° 158.232069°
Compressor —- 6.997654° 158.232009°
Japanese Seaplane Strut —- 6.997610° 158.231969°
Japanese Seaplane Engine & Prop —- 6.997646° 158.231922°
Japanese Seaplane Carriers —- 6.997317° 158.231503°
Japanese Seaplane Ramp Trailhead —- 6.998005° 158.231864°
Japanese Seaplane Ramp —- 6.999088° 158.233040°

Northern Lenger

Well —- 6.998180° 158.231401°
Bomb Craters —- 6.998240° 158.230883°

Western Lenger

Japanese Coastal Barracks Site —- 6.996593° 158.228989°
Japanese Coastal Barracks Site —- 6.997418° 158.228861°
Dolen Lenger Trailhead Western Route A —- 6.997555° 158.229206°
Dolen Lenger Trailhead Western Route B —- 6.997874° 158.229242°

Central Lenger (Hill Area)

Intersection of Japanese Hill Roads —- 6.997592° 158.230367°
Tunnel Entrance —- 6.997431° 158.230122°
Japanese Dug-out 1 —- 6.997294° 158.230053°
Japanese Dug-out 2 —- 6.997325° 158.230153°
Japanese Gatepost —- 6.997197° 158.230789°
Dolen Lenger Japanese Cistern 1 —- 6.996967° 158.230894°
Cement Steps —- 6.996908° 158.230919°
Japanese Coastal Battery Trailhead —- 6.996659° 158.230743°
15-cm Gun Station 3 —- 6.996673° 158.230400°
15-cm Gun Station 4 —- 6.996549° 158.230341°
15-cm Gun 4 —- 6.996589° 158.230353°
Japanese Heavy Ordnance Magazine —- 6.996374° 158.230300°
Japanese Searchlight Drum —- 6.996547° 158.230692°
Searchlight Mount —- 6.996547° 158.230644°
Well —- 6.996164° 158.230914°
Small Japanese Gun Station —- 6.996278° 158.230736°
Japanese Anti-Aircraft Gun Station 1 —- 6.996000° 158.230706°
Cliff-Top Viewpoint —- 6.995681° 158.230625°
Japanese Anti-Aircraft Gun Station 2 —- 6.995547° 158.230878°
Cliff-top Viewpoint —- 6.995256° 158.231036°
Dolen Lenger Summit —- 6.995211° 158.231133°
Tunnel Entrance —- 6.996831° 158.230875°
Japanese Hillslope Barracks Foundations —- 6.996666° 158.231196°
Dolen Lenger Japanese Cistern —- 6.996650° 158.231408°
Japanese Diesel Engines —- 6.996544° 158.231369°
Japanese Catchments —- 6.996519° 158.231397°

Around Lenger Island

Mangrove Channel – North End —- 6.994655° 158.233077°
Mangrove Channel – South End —- 6.992055° 158.232919°
Kohatsu Wharf Ruin —- 6.991614° 158.232224°
Jaluit Cistern —- 6.994608° 158.227631°

Central Sapwtik

Sapwtik Island Japanese Wharf —- 7.002000° 158.223916°
Coastal Path Intersection Point —- 7.004462° 158.224978°
Ascent to Dolen Sapwtik —- 7.004270° 158.225460°
Japanese Hilltop Wall —- 7.004401° 158.225972°
Dolen Sapwtik Summit —- 7.004317° 158.226247°
Japanese Hilltop Foundation 1 —- 7.004372° 158.226264°
Japanese Hilltop Foundation 2 —- 7.004531° 158.226044°
Japanese Hilltop Foundation 3 —- 7.004643° 158.225894°
Great Banyan —- 7.004788° 158.225917°
Japanese Hilltop Cistern 1 —- 7.004421° 158.226434°
Japanese Hilltop Cistern 2 —- 7.004567° 158.226193°

Western Sapwtik

Japanese Heavy Ordnance Magazine —- 7.005594° 158.224468°
Japanese Coastal Gun Station 1 —- 7.005850° 158.224329°
Japanese Coastal Gun Station 2 —- 7.005976° 158.224384°
Japanese Coastal Gun Station 3 —- 7.006085° 158.224460°
Japanese Coastal Gun Station 4 —- 7.006203° 158.224497°

Northern Sapwtik

Japanese Hillside Rifle Pit —- 7.005679° 158.224880°

Downloads >> GPS Central >> Lenger Island GPS Data

Sokehs Japanese Sites & Parpwu Waterfall

Historical Sites in Mainland Sokehs

BikingHiking / TrekkingCave, Tunnel or BunkerWorld War II FortificationsArchaeological Site / RuinWaterfallCamping

“Military Road” Hike / Bike Tour

One of the most rewarding routes for Japanese World War II-era historical sites follows a road 0.46 km (0.29 mi) northeast of the turn-off to the FSM capital. This track was built by the Japanese in the 1930s to access the many military sites in the area and remains unpaved. Whether it is public or private, however, seems to be a matter of some debate. FSM Telecom, which maintains a mobile phone tower near “Radar Station Hill” and uses the road often, says that the road and the areas immediately alongside it belong to the municipality and that people living beyond the Thomas residence are squatters without legal land claims. Even so, a family living on the south side of the road about 1 km (0.62 mi) from the Circle Island Road insists that everything beyond their house is private. There are two ways for visitors to deal with this issue: either (1) hire a knowledgeable local guide to escort you on your hike (you’ll likely find more with them anyway) or (2) visit the house in question and ask permission yourself. During our fieldwork, we used both options successfully. The road, though unpaved, is in pretty good condition, and as it doesn’t climb much, it’s a great choice for either hiking or biking. You can park your vehicle at the beginning near the Circle Island Road and go from there.

Grassy Bunker Hill, Sokehs, Pohnpei, Federated States of Micronesia (FSM)

“Bunker Hill”

About 100 m (109 yd) from the starting point, you can cut off the road to the right and climb up the grassy hill, making your way toward the landowner’s house about 200 m (219 yd) to the northeast. This is the place to ask for permission to explore in detail. There are several points of interest worth looking into. At the southwest and northeast ends of the hill, there are bunker-like observation stations that consist of curved tunnels with domed concrete roofs and several gun ports. The southern bunker site is well-hidden with the entrance near the base of a large tree that has grown up in recent years. Entering is a dirty job, but once you’re inside, the structure becomes quite roomy. The gun ports allow light inside. The northern site is close to a large cassava plantation and is kept cleared. You can enter easily from either end. These structures were likely manned by a few riflemen and intended to protect the roads on both sides of the hill. In view of the landowner’s house you can also find a zigzag trench and two gun sites, one of which was probably a medium-sized anti-aircraft gun. No guns remain now. Some people believe a gun at this location shot down the American bomber “Love Bug”. Others say it was one on Dolen Pahniepw.

Paul Thomas’s Hill

Another 277 m (303 yd) further down the road, one comes to the residence of a friendly West Virginian native, Paul Thomas, and his local wife. Thomas enjoys a good chat, and if you ask politely, will happily point you in the direction of several interesting sites on the hill above his house. Easily found are two pairs of bunkers similar to those mentioned already, and between these, three small gun sites and several foxholes. Thomas keeps the hill trimmed and neat; all but one of the sites (the first set of bunkers) lie along the crest of the hill over a distance of about 125 m (137 yd). The hill commands sweeping views of the Palikir valley to the west.

  • If you want to make arrangements ahead of time, call Paul Thomas at +691.320.4562.

Japanese beer bottle at Dolen Pahniepw barracks ruin, Sokehs, Pohnpei, Federated States of Micronesia (FSM)

Dolen Pahniepw

The next stop is Dolen Pahniepw. An overgrown trail begins off the right side of the road 0.56 km (0.35 mi) past Thomas’s driveway and runs 0.43 km (0.27 mi) to the summit of the hill. About 300 m (328 yd) along the trail, one comes to the ruins of an army barracks, which consists of concrete house posts,
foundations
, and a bombed-out cistern. Sets of concrete steps led to the entrances of the wooden buildings. Some scrounging in the jungle around the site should yield some old Japanese beer bottles. At the end of the trail is a large anti-aircraft gun site, which probably housed a medium-sized gun similar to those on Lenger Island. On the northeast side of the hill, you may be able to locate the foundation of a radio tower, some tunnels, and the chassis of a truck.

At the southern end of the hill near the road, you can scramble up the bank and find a pair of unfinished small gun emplacements, some trenches in the woods, and a defused bomb.

“Radar Station Hill”

Local guides at Radar Station Hill, Pohnpei, Federated States of Micronesia (FSM)
The road ends near the FSM Telecom cellular phone tower at the summit of a hill. A footpath continues west to a cement platform for a Japanese radar array, two foxholes, and two circular gun sites. A large bomb crater south of the road makes an excellent tent site for campers with unobstructed views of the whole of mainland Sokehs. Back east down the road, an L-shaped cutting leads to a path and eventually to the site of a generator station with a concrete storage alcove built into the embankment and a rusting motor.

  • Plan for a half day to full day for this hike/ride, depending on how many sites you want to explore.
  • No guide is necessary for the Military Road sites as long as you ask permission wherever private land is an issue. However, you are likely to discover much more of interest with a guide who knows the sites. Please visit the Local Guides & Tour Operators page for a list of experienced guides available for hikes around Sokehs, if desired. Offer $25-50 for a group of five or less.

PBJ-H1 “Love Bug” Bomber Ruins

The port engine of the Love Bug bomber, Pohnpei, Federated States of Micronesia (FSM)
Throughout 1944 and early 1945, the U.S. carried out a brutal bombing campaign of Japanese fortifications on Pohnpei. The only bomber ever shot down was a PBJ-1H (the U.S. Marines version of the Airforce B-25H) nicknamed “Love Bug” and piloted by First Lieutenant William J. Love. On February 6, 1945, while on a mission to destroy targets at the nearby Palikir airfield, the Love Bug was picked out of the sky by an anti-aircraft gun on one of the nearby hills (possibly “Bunker Hill”, Paul Thomas’s hill, or Dolen Pahniepw). The plane burst into flames upon impact, killing the entire crew. After the crash, Japanese soldiers collected the bodies and buried them in a marked grave near the crash site. A monument to the crew used to be found at the burial site, but it was taken apart by looters in the 1980s.

The crew was disinterred and reburied several times during the American Period before coming to rest at Jefferson Barracks National Cemetery in the U.S. — all except Sgt. David Snider, whose whereabouts were unknown until 1948. The wreckage was not positively identified until 2001, when two aviation archaeologists surveyed the area. The tail section and rudder were still visible in the forest in the 1980s, but the site has been heavily looted since and only a few large pieces remain — the port engine (sans prop), landing gear and wheel, and a portion of a stabilizer. Bits of wreckage are strewn across an area of some 7,000 square meters. Three defused bombs are also said to be in the vicinity, but we were unable to locate them during our visits.

It’s easiest to visit the site from the unpaved water tank road behind the FSM presidential housing facility. No guide is necessary, but you’ll have to ask the officer at the security check-point to let you through. The wreck is found on the forested slope a few meters off the north edge of the road before the water tank.

  • Plan for 1 hour for this hike. No guide is necessary, but you will need to ask the security guard on the road to let you through.

A brick kiln on the banks of the Nankewi River, Pohnpei, Federated States of Micronesia (FSM)

Nankewi River Vicinity

Ethanol Manufacturing Site

On the banks of Pillapen Nankewi (Nankewi River) the remnants of Japanese industry can still be seen. Neat stone retaining walls frame the river and trenches and pipes form a grid on the north bank. On the south bank are three large fermentation tanks, a variety of other distilling gear, brick ovens built into the hillside, a huge press, a crank, and other rusting machinery. The equipment was likely used to distill ethanol from sugar cane for fuel and other industrial purposes. A great deal of Japanese beer and liquor bottles litter the spot.

Parpwu Waterfall

Parpwu Waterfall, Pohnpei, Federated States of Micronesia (FSM)

The rather flat terrain in greater Sokehs doesn’t make for a lot of waterfalls, but Parpwu (a.k.a. “Nan Lohlo” or “Nankewi”) — located on the Nankewi River just behind the now deserted Sokehs Shopping Center — is unusual because it’s so close to the coast, almost in the mangroves. In fact, during very high tides, you can kayak all the way from Sokehs Bay to the falls. The waterfall is a beautiful sight, but unfortunately, upstream piggeries have polluted the watercourse and swimming is ill-advised (even though you’ll see local kids from the area doing just that). Photo courtesy of Bill Jaynes.

  • Plan for 1 hour for this hike. Its easy to find someone to guide you down to the falls and/or distillery site. Just ask in the area. Offer $6.00.

Map Guides >> Mainland Sokehs >> Mainland Sokehs Historical Sites

Nahnalaud — the Big Mountain

The Big Mountain

Hiking / TrekkingCave, Tunnel or BunkerWaterfallBird-WatchingCamping

The highest mountain in the Federated States of Micronesia (FSM) is called Nahnalaud (which means “big mountain”) and is located almost in the exact middle of Pohnpei Island. Pohnpeians consider the mountain sacred and regard it with respect and reverence, though most people have never been there because of the long, difficult hike involved. Local deer hunters and upland sakau farmers are the most frequent visitors to the highland region. A limited number of foreigners also attempt the summit.

In reality, Nahnalaud is not a single mountain but rather the highest peak in Pohnpei’s contiguous central mountain system, which separates the five chiefdoms. The primary central ridge runs from west to east and then curves north toward U not far beyond Nahnalaud. Additionally, a secondary ridge runs south, leading to Pohnpei’s second highest peak, Ngihneni, and then turning sharply to the west. The two ridges fence in the long, narrow Nanmeir Valley — the most remote region on the island.

The exact elevation at the Nahnalaud summit is a matter of debate as the survey methods used in the 1970s to map the island have a significant margin of error. The official number is 772 meters (2,533 ft), but the peak may actually be higher than that — likely close to 780 m. Ngihneni (“spirit’s tooth”) is nearly the same elevation (a difference of a few meters), which has generated a long-running dispute about which is actually the highest point. Nett, Kitti, and Madolenihmw have also argued about which chiefdom can claim Nahnalaud, but according to the municipal boundary lines on the 1983 USGS map, each of these municipalities has a piece of the peak.

Hikers should be careful not to underestimate the mountain. Though the distance is not extreme, the terrain is. Experienced trekkers will find all of the approaches challenging merely because of the very rugged nature of Pohnpei’s interior mountains. The concept of switchbacks is little known on Pohnpei; trails are rough, rocky, and often go straight up the slope. Hikers who plan to tackle Nahnalaud should be prepared to walk along narrow ridges with steep slopes on either side; cross jumbles of broken, slippery rocks; ford medium-sized rivers (particularly on the Nett and Madolenihmw routes); walk in shallow, rocky riverbeds; ascend and descend slopes of 50 degrees or steeper; wade through muddy mires; cross slick logs; and push through high grass or ferns.

Despite the difficulty in getting to the top, the trip is well worth it. Those who have never visited a cloud forest before will be awed by the otherworldly beauty of the ridge, a perpetually dripping wonderland of stunted, hoary trees, air plants, and bryophytic growth. Virtually every surface is covered with a thick layer of spongy golden moss and the ground is composed of layer upon layer of damp, decayed matter. The area, which never dries out, gets at least 8.3 meters (325 in) of rain every year and is shrouded in thick fog much of the time, making clear views from the summit a rare occurrence.


Pehleng Approach (Western Kitti)

Hiking along the central ridge east of Pehleng, Pohnpei, Federated States of Micronesia (FSM)

This well-defined trail up to the primary ridge and eventually to Nahnalaud was first promoted in 2013 by a local business calling itself Pohnpei Trailways. The idea was that this trail, starting in Pehleng, could be hiked by tourists without the assistance of a local guide. We strongly recommend that you do NOT do it that way. In fact, we think it’s a very a bad idea. Though at the time of writing (2014) the entire length of the trail was marked with pink flagging tied to tree branches, there is still plenty of potential for visitors to go astray. Furthermore, accidents or injuries without a local guide present could result in disaster. Remember that Pohnpei has no search and rescue service.

The true ascent begins after passing through a cluster of houses (ask permission) 0.95 km beyond the trailhead. After that, the trail is wide and true as it climbs steadily for 1.45 km (20% slope average) through the forest to the open fern meadow atop Dolen Salapwuk (510 m), where there are some good views in clear weather. The trail then re-enters the forest and begins to climb again for 4.6 km (13% slope average), narrowing as it comes up to the main ridge (696 m). Just before Shelter 1 (Dolmweir), there’s a 315 meter-long segment that is less than a meter wide with precipitous slopes on both sides; we’ve dubbed it the “Knife Edge.”

Shelter 1 is located at Dolmweir, where an appendage of the mountain thrusts north from the main ridge. There is no flowing water nearby. The privy is located 22 m to the north. After Shelter 1, the trail descends steeply by about 62 m on the south side of the ridge and skirts the base of a rocky cliff before climbing back to the ridge-top. From there it goes up and down for 2.94 km before reaching Mountain Shelter 2 roughly 5 minutes below the Nahnalaud summit.

  • Plan for 5-7 hours from the trailhead to Shelter 1 and 3-4 hours from there to the summit.

NOTE: As of February 2014, the pandanus-thatch roofs of the two ridge shelters were in very bad shape, heavily deteriorated and leaky. Plan accordingly.

The Origin of the Yap Banana

In the westward land of Sapani, a woman named Lienpwel (“woman of earth”) had two daughters, Lisoumokaiap and Lisoumokalang. The daughters decided to take a canoe and look for new land in the east and brought with them some “underworld yams”, banana shoots, and a stone called the Stone of Sahwar. The sisters eventually landed at a place in what is now Pwoaipwoai district (at that time the island was smaller and Pwoaipwoai lay near the coast). There they placed the stone and planted the yams. The stone was highly reflective, and when the sun would hit it, it would shine brightly (hence the name Sahwar, which means “shining” or “flashing”).

The younger of the two sisters, Lisoumokalang, eventually returned home to Sapani. On the way she visited the islands of Yap and propagated a new type of banana, which thrived and became the tallest of all banana varieties. Some time later, a Pohnpeian man who lived in a place called Loangen Kitti was looking west toward the sunset and he saw the tall banana plant in the distance. The ripe fruit were attracting many birds, so he found two starlings – one a common Micronesian starling (sioahk) and the other a Pohnpei mountain starling (sie) – and he took them up to a high mountain in Pehleng. The Micronesian starling was a lazy flier, but the mountain starling was clever and efficient. He sent both flying toward Yap. The Micronesian starling was distracted on the way and diverted from its course. Only the Pohnpei mountain starling reached its destination. It joined the other birds in eating the bananas, and while it did so, a seed became lodged in its feathers. Both birds eventually flew back to Pohnpei and landed at the peak of Pekenuht (which, appropriately, means “banana feces”). The seed carried by the mountain starling fell to the ground and propagated utin iap (the Yap banana).


Enipein Powe Approach (Kitti)

Twisted tree-life on the central ridge north of Enipein, Pohnpei, Federated States of Micronesia (FSM)
This route begins at the end of an unpaved road in Enipein Powe and climbs gradually on a well-defined footpath up an out-thrust from the southern ridge. At the top, the trail passes through a saddle between Nahnan Pwoaipwoai and Dolen Uhd, then descends slightly along the inside of the ridge slope, finally arriving at a massive overhanging rock known by local guides as “the cave.” The cave has nice views through the trees of the Nanmeir Valley at the Lehnmesi River source below. You can also see Nahnalaud to the northwest and make a guess at the direction of Ngihneni to the east. The cave is an excellent place to camp with a cushioned fern-lined floor (that stays dry in wet weather) and usually some dry firewood stowed by hunters in the vicinity (replace what you use).

From the cave, the trail continues along the inner slope below Ngihneni, crosses several small streams, and then climbs steeply (20% slope average) to the top of the main ridge. At this point it’s just a short walk west along the ridge path to the first open viewpoint near a USGS benchmark. The spot people typically consider to be the summit is 5-10 minutes further, and Shelter 2 is just below that.

  • Plan for 6-8 hours from the trailhead to the cave and 90 minutes to 3 hours from there to the summit.


Salapwuk Approach (Kitti)

There are many ways to Nahnalaud from Salapwuk but they all begin at the end of the road beyond Salapwuk Elementary School. The early part of the hike uses the same trail as the Six Waterfalls, but at the place where one would turn toward the river to encounter Falls #1 (Pahnairlap), one instead follows a trail going northeast. This trail stays north of the river, crossing above Iro, Nan Emp, and Lipwentiak waterfalls. The latter is the most spectacular, located where the river gets funneled into a narrow channel and makes a hairpin turn. According to legend, this feature of the river was created when the matriarch of the Great Eel Clan encountered an eel hunter and writhed violently in horror at the sight of the dead eels he was carrying. Small pools above the falls are home to Pohnpei’s endemic freshwater shrimp, which the guides might be willing to catch for dinner. After that, the trail only meets the river again twice, where it cuts through a wide loop in the watercourse. It then turns north and climbs 362 meters in elevation to the primary ridge, not far from the summit.


Nanipil Approach (Nett)

Foggy forests on the Nanipil approach to Nahnalaud, Pohnpei, Federated States of Micronesia (FSM)
Though slightly shorter, the Nanipil approach to Nahnalaud is certainly challenging. It’s significantly steeper than the other routes (except Salapwuk) and the trail is not well-maintained once you reach the rear of the valley. The hike starts at the house next to the hydroelectric building at the end of Nanipil River Road. Immediately behind the house, hikers must cross a river and then shortly after that a small stream. An easy segment follows with a well-defined residential path leading to the last house in this part of the valley (1.39 km), where an old man lives alone.

Past the house, the route continues on a fairly well-defined path that crosses the river several times (these crossings can be tricky if there has been a lot of recent rain). In a few places, you have to walk in the river itself, which can be quite difficult given the slickness of the rocks. Finally, after 2.94 km (3% slope average), the trail begins to climb out of the valley on the east side of the river and follows a sub-ridge up from there (3.16 km with a 22% slope average).

The climb has several pitches with small, flat rest areas in between. The first stop has a conspicuous tree of gigantic proportions entwined with vines almost as massive. The second stop is frequently used as a camp site by hunters and is one of the few places on the mountain with mobile phone reception. The final segment leading to the primary ridge is steep and often muddy. In places it follows the natural pathway of small streamlets (keep an eye out for a small waterfall high up on the slope). Once reaching the main ridge (754 m elevation), it’s an easy 0.56 km walk east to Shelter 2, a typical nahs-style thatched hut that can sleep ten or so.

NOTE: As of February 2014, a large part of the roof of this shelter had rotted away, leaving the central part of the hut exposed to the elements.


Nankepinmerepw Approach (Madolenihmw)

Nankepinmerepw valley, Pohnpei, Federated States of Micronesia (FSM)

This route passes through the gorgeous valley of Nankepinmerepw, following the upper tributaries of the Nan Riohk Stream and eventually arriving north of Nahnalaud on an arm of the primary mountain system.

The hike begins at a rutted turn-off from the well-graded (but unpaved) road to Pahn Sile Waterfall, leads to a metal footbridge over the Senipehn River — the only bridge like it on the island — and connects with a path on the far side. From there, the trail meanders northwest not far from the Nan Riohk and more or less parallel to it.

The first kilometer or so cuts through cultivated lands. Then it begins to follow the water more closely as it passes into the wilder riverine forests. There are at least nine major stream crossings in this next segment, some of which may be difficult or impossible if there has been a lot of recent rain. Above the last major Nan Riohk tributary, where the name of the stream changes to Nankepinmerepw, hikers take to the stream bed itself, which is certainly the most challenging aspect of the route (13% slope average). The algae-slimed rocks are slick and dangerous and hikers may find that they have to go very slow and use both hands to avoid disastrous slips; it would be easy to snap an ankle or shatter a kneecap in this place. Despite the rough terrain, the scenery in this narrow valley, often fenced on both sides by high rocky walls, is terrific. At times, the trail passes along the tops of vertical prismatic basalt columns.

The first few points of interest are beautiful pools that will tempt any overheated hiker — and why resist? A bit further is a small waterfall near a prismatic basalt quarry site for Nan Madol. Abandoned prisms can be found lying in the stream bed in several places — the largest just below the falls. How exactly prisms were hauled down to the coast from this site is anyone’s guess. After a short, steep section (22% slope average), the valley terminates at a huge “horsetail” waterfall that the route crosses above (you can scramble down the eastern slope without too much difficulty for a better view from the side). The shallow pools above the falls are also an excellent place for a look at Pohnpei’s native crayfish.

Past the big waterfall, the stream narrows until it reaches a third waterfall — this one short and wide, falling over a straight lip (usually called a “block falls” or “sheet falls”) — and then diminishes to a trickle. From this point, the hike climbs west (29% slope average) and then south again as it follows the ridgeline (18% slope average) toward the Nahnalaud summit.


How Long Will It Take?

Though it is possible to hike up and down Nahnalaud in one day, as we did during one of the many data-gathering excursions, we don’t recommend that you put yourself through that kind of torture. Hiking to Nahnalaud should be considered a 2-day affair with one night spent either at the cave, one of the mountain shelters, or somewhere else on the ridge. Inexperienced or out-of-shape hikers may need three days or more.

Hiring a Local Guide

All of the routes up to Nahnalaud require an experienced local guide.

You should offer your guide no less than $160 if there are five or less in your group and at least $220 if there are more than five (plus tips). If you do the math, you’ll see that this is quite reasonable. With five people, each hiker pays just $32 plus tips — a super bargain. If you can’t assemble a group, you’ll still only pay $80 per person with two hikers, which is less than you’d pay for two dives at virtually any SCUBA company in the world (and this is two days and one night). Obviously, if you plan to take a slower pace and do the hike over three or more days, you’ll need to pay your guide more.

Your guide is your lifeline; you will depend on him to keep you safe and on the right track throughout the duration of your hike. Guides provide other useful services as well, such as making campfires in damp weather. If you expect your guide to cook meals for the group or carry any gear for you, he should be paid extra. Agree on a price beforehand.

Map Guides >> The Interior Highlands >> Nahnalaud

Madolenihmw Bay Area

BikingHiking / TrekkingCave, Tunnel or BunkerWorld War II FortificationsArchaeological Site / RuinBird-WatchingCampingSwimmingSnorkelingSCUBA divingKayaking / CanoeingSurfingPicnickingBeachesMarine Reserve

Dauen Sapwalap / Senipehn Mangrove Reserve

  • Visit the Paddling Around Madolenihmw page for a detailed description of this location and the adventures to be had in the area.
  • Entering the mangrove reserve requires a permit. Visit our MPA page for details.

Kamau Pwoungapwoung

Though we didn’t map the hike to this destination as part of the eco-adventure map series (for lack of time), it would, never the less, be an exciting adventure to consider. Kamau Pwoungapwoung refers to a freshwater pool and waterfall at the headwaters of the Dipwilap Stream (Pilen Dipwilap), one of the tributaries of the Senipehn River (Pillapen Senipehn). The place is significant as the location where the last battle between the Saudeleur‘s warriors and Isokelekel’s men was fought. Upon being defeated by Isokelekel, the Saudeleur transformed himself into a small blue fish, that inhabits the pool to this day, and leaped into the waterfall. The hike would be a long one from the area around Pahn Sile. The closest access point would probably be from the direction of Nihpit fern meadow (reached from eastern Kitti).

  • The absolute best choice for a guide is Relio Lengsi. Give him a call at +691.924.2580 and discuss the best route options and access points for this location. Offer $50.00 for a full-day hike.

Nanpahlap Peak

The 137 m (449 ft) hill to the east of Takaiuh looks as if its top has been lopped off — which fits in with the story about its creation (see Takaiuh below). Though steep in places and somewhat overgrown, the ascent isn’t too strenuous. At the summit are the tumbled ruins of a prehistoric stone structure and a breath-taking view. The whole area around the southern foot of the hill is criss-crossed with Japanese trenches and dotted with tunnels, including at least one very long one leading into the hill. The grid of paddies and irrigation canals where the Japanese successfully cultivated rice (despite Pohnpei’s challenging climate conditions) are found on both sides of the unpaved access road, though you can get closest to the bulk of these fields from another road to the west.

Everything is private land, but no official access fees are charged.

  • To hire a guide, ask at the houses in the area or contact Hanke Albert at +691.320.4047. Offer $25.00 for Nanpahlap or a half-day of exploration in the area.

Nanwap Marine Protected Area (MPA)

Nanwap Marine Protected Area is a 3.05 km2 (305 hectare) section of the barrier reef and adjacent lagoon areas on the north side of Kepidauen Deleur (passage). The sanctuary was founded by community members from Metipw and Lukop and their respective chiefs and gained legal status in 2010. It became the first of Pohnpei’s MPAs to have its own formal community-created management plan with the support of the Pohnpei MPA Executive Management Network and the state offices of the Department of Land and Natural Resources, Division of Fish and Wildlife, Office of Fisheries and Aquaculture, and Environmental Protection Agency. Nanwap is a “no-take zone,” which means no fishing or gathering of any kind is allowed within the boundaries. It is regarded as the “most biologically diverse and best preserved spawning and aggregation site” for many of Pohnpei’s core reef fish species. Snorkelers should seek out the protected blue holes on the west side of the reef, while SCUBA divers will want to do a drift dive on the southern wall of the reef during an in-coming tide.

  • Entering the MPA requires a permit. Visit our MPA page for details.

Pahn Dieinuh

Boys roll tires for a game, Madolenihmw, Pohnpei Island, Federated States of Micronesia (FSM)

Peiai

Peiai is a small populated place near the turn-off for Pahn Sile waterfall. During the battle between the warriors of Isokelekel and the army of the last Saudeleur, Peiai was the place where the tide of battle turned dramatically (hence, the name references a situation where the runner-up in a race pulls ahead of the leader — loosely translated “the battle is reversed”). Isokelekel’s men were being beaten down by the forces of Nan Madol when one of the conqueror’s greatest fighting men pinned his own foot to the ground with his spear, refusing to retreat and declaring that he would kill any man who tried to run away from the fight. Isokelekel’s men rallied behind this show of bravery and pushed back the Saudeleur‘s warriors, chasing them up the Senipehn River and eventually to Kamau Pwoungapwoung, a waterfall at the headwaters of the Dipwilap Stream, where the Saudeleur was finally defeated.

Sapwalap

Sapwalap (“large land”) is an expansive region of mostly flat ground that makes up a sizable chunk of central Madolenihmw. The Japanese recognized Sapwalap‘s potential as a site of large-scale agriculture. During the thirty years leading up to World War II, sugarcane was cultivated and processed at a facility near Kitamw (the tower is still partly visible in the jungle off the road) and rice was grown in a patchwork of paddies fed by irrigation canals. Strangely, no one is growing rice these days, but the paddies are still there opposite the gleaming LDS Church. Other fields are found as far east as Lukop.

Takaiuh peak, Madolenihmw, Pohnpei Island, Federated States of Micronesia (FSM)

Tahio

Tahio, on the south side of Nanpahlap, is another place where the Japanese were active. The access road was built by them and the coastal area is full of trenches, rifle pits, dugouts, and tunnels. Everything is overgrown, but anyone who pokes around will be rewarded with interesting finds. Bring a local resident along.

Takaiuh Peak

You can’t visit Madolenihmw without being arrested by the sight of Takaiuh, a 160 m (525 ft) peak shaped like a traffic cone that stands on the north side of the bay and seems to guard the entrance to the Sapwalap estuary. The mythical origin-story of the hill — which bears a striking resemblance to the Biblical tale of the tower of Babel — involves Mwohnmur and Sarapwau, two wily brothers who enter into many Pohnpeian legends (they also created the Sahwar Valley and the rock of Pohnpaip).

How Takaiuh Came to Be

Long ago, two boys named Mwohnmur and Sarapwau were born in Salapwuk (Kitti) to a woman named Lienlama. The boys were always involved in clever schemes and mischief and traveled far and wide doing great works. Once, the brothers took a piece of stone, and using it like a canoe, paddled to Pohndolen Imwinsapw near what is now Tahio in Madolenihmw. There, Mwohnmur and Sarapwau amused themselves by piling up rocks until they had formed a large hill. A local demi-god named Lapongo saw what they were doing and wasn’t pleased, so he threw a stone at their hill and destroyed it. He then challenged the brothers to a competition to see who could build a mountain the fastest. The three set to work, but it soon became apparent that the boys were winning. Their mountain was so tall it had reached the sky. Being a poor loser, Lapongo became enraged. He picked up a stone and threw it at the new mountain, which broke into six pieces. The base of the mountain that remained standing was named Takaiuh (“standing stone”).

This was not the end of the conflicts between the brothers and Lapongo, however. Lapongo mocked and ridiculed the boys whenever he could, and they did not like it. Now, the brothers liked to play at a place called Pahnlikes, below the spot where they had settled on Likes peak west of modern-day Sapwalap. There was a steep slope there that they would slide down for fun, sitting upon the leaf sheaths of the kotop palm (Clinostigma ponapensis). The boys knew that Lapongo had been watching them and was aware of their play place, so they decided to trick him. Lapongo was invited to slide down the slope with the boys, but they chose a spot where the slope ended at the waterside (possibly the southern tributary of Pilen Kitamw). All three began sliding down the hill. When Mwohnmur and Sarapwau reached the bottom, they leaped off their sheaths and dived to safety, but Lapongo went straight and fell into the water. He sank down into the depths, and the brothers threw rocks on top of him to keep him from resurfacing.

Takaiuh is actually an island separated from the coast by a strip of mangrove forest. It was once inhabited, but is no longer. Though the hill is climbable, the ascent is extremely dangerous, characterized by very steep slopes and cliffs prone to rockslides with little or nothing solid to hold on to. For this reason we strongly advise visitors to enjoy Takaiuh from below rather than trying for the summit. Hikers who insist on seeking the summit, do so at their own risk. Distant views of the peak are found along the Circle Island Road, but the best close-up view from land is from the old Japanese road in Kepine. According to residents living in the area, the Japanese abandoned an attempt to build a trail all the way to the top of the hill. Some of the low wall can still be seen on the lower slope.

Map Guides >> Central Madolenihmw >> Madolenihmw Bay Area

Timwen Men, Dolakapw & Pohn Tehnmei

North Madolenihmw Hikes

Hiking / TrekkingCave, Tunnel or BunkerWorld War II FortificationsArchaeological Site / RuinBird-Watching

The northernmost section of Madolenihmw is separated from the rest of the municipality by a range of low mountains that run east-west from Mesihsou to Alohkapw. This range was fortified by the Japanese army during World War II because it was easily accessible and commanded excellent views of lands both to the north and the south. The hills are riddled with tunnels and man-made caves, and a ridge path runs from the east end and connects with the primary mountain system in the central part of the island. There was a time when Japanese soldiers could travel from Mesihsou all the way to Kupwuriso without ever leaving the mountains. Small 75-80 mm guns were also installed at hidden spots among the hills.

There are many potential hikes one could do in these interesting mountains, but we’ve chosen to focus on three routes leading to small peaks along the ridge: Timwen Men, Dolakapw, and Pohn Tehnmei. All three cross private land.

Timwen Men

The name of this small peak at the western end of the ridge means “beak of the bird,” a reference to the many brown noddies that can be seen flying around the summit. The hike begins at the houses near the end of the road, belonging to the extended family of Eiber Rosario, and passes through the family’s sakau plantation on the slope. Any semblance of a trail vanishes at the foot of the hill, where you have to clamber up the steep, muddy hillside. At the top, there’s an extensive network of Japanese defensive trenches. The Japanese ridge path goes east as far as Mesihsou and west to Kupwuriso, but the problem with hiking the entire distance in one go is that the mountain range is broken up into a number of private parcels owned by different (and sometimes competing) families. The trail is easy to follow as it goes west toward the Timwen Men summit (331 m / 1,086 ft). Along the way, you’ll pass several impressive tunnels that bore into the hill and connect with the trench system. Two circular pits seem to have been either small caliber gun stations (possibly 80 mm) or rifle positions. No guns are found there now. The summit is a little overgrown, but still affords nice views of the valley.

  • The hike takes about 3 hours round-trip.
  • To arrange for a guide, ask for the colorful Eiber Rosario at the houses near the end of the road. You may also be able to locate Eiber by calling his son-in-law, Colton, at +691.923.6941. Offer $20.

Dolakapw (Edienleng)

A Japanese tunnel on Dolakapw, Pohnpei, Federated States of Micronesia (FSM)

This hike starts at the main road opposite a small store, passes through a group of houses, and follows a well-traveled footpath, climbing steadily but never steeply to Dolakapw (“new hill”), a peak in Edienleng. The trail ends at a plantation of sakau and other agroforestry crops. From there the route curves around the south side of the hill (with views of the Sapwalap plain), where two large Japanese tunnels burrow into the slope. The lower one is partially collapsed, the steel rails for a mining car still jutting out of the hole. The roof here is unstable, so it would be unwise to venture inside. The tunnel is about 15 meters long. The second tunnel, a little higher up the hill, is in better shape with U-shaped steel supports holding up the rocky roof. Bats and Caroline Islands swiftlets nest at the rear. The landowner believes that the Japanese intended to connect the two tunnels, but abandoned the project once the Allied bombing campaign began. The semi-open Dolakapw summit (305 m / 1,001 ft) is just above.

  • The hike takes about 3 hours round-trip.
  • To find a guide, visit the small store on the coastal side of the road and ask for Isaac Fred. Offer $20.

Pohn Tehnmei

This short, strenuous hike begins at the home of brothers Atsent and Romeo Welcher at the end of an intermittently paved road west of Nan Pailong. There isn’t much of a trail; the route just goes straight up the slope behind the house along an eroded track used to drag huge sakau pounding stones, called peitehl, down from the mountaintop. The first thing encountered at the top is the quarry site itself — a collection of pits from which the stones have been dug. There was a time when people came from all over the island to get peitehl at this spot. Currently, the state forbids the practice, but you may get the distinct impression that it’s still going on nonetheless. Not far from the top of the hill, a gigantic peitehl marks the spot where the brothers Olsihpa and Olsohpa looked down and first laid eyes on Sounahleng, the place where they would eventually begin the building of Nan Madol (there’s no view from here now, unfortunately). Also, a trio of large stones slightly to the west are said to have been formed from the bodies of a man, his wife, and their child. From there you can continue west along the ridge to the Pohn Tehnmei summit (347 m / 1,138 ft). The tree cover on the ridge, however, obscures any good views of the lowlands.

  • Plan for about 2 to 3 hours round-trip for this adventure.

Japanese Tunnel

At the base of the hill on the Welcher farmstead is a 14 meter-long curving Japanese tunnel. Mining car rails lie along the floor, and though the mouth of the cave is partially collapsed, the rest is supported by U-shaped steel supports. You can enter carefully and walk to the end (bring a headlamp or flashlight and expect some bats).

  • Either Atsent or Romeo Welcher (+691.925.8075) can be hired as guides, though Romeo’s English is better. If you can’t get them by phone, just go to the house and ask one of them to take you up. Offer $20.

Map Guides >> U & Northern Madolenihmw >> North Madolenihmw Hikes

Nan Koropwung Cliff & Caverns

Hiking / TrekkingCaveWaterfallBird-WatchingCamping

Prismatic basalt wall at Nan Koropwung, Pohnpei, Federated States of Micronesia (FSM)

Anyone who takes a good look at the mountains on the eastern border of Nett will note a dark patch of naked basalt amid the otherwise unvarying green of the steep hillsides. This is the cliff-wall and caverns of Nan Koropwung. The trail to this spectacular and little-known site begins at the end of the unpaved but well-graded road in Paremkep and meanders up the heavily-wooded slope with some rather steep and brushy sections. Eventually, one comes to a towering wall of prismatic basalt columns overrun by a waterfall, which can be dramatic after heavy rain, but is most often thin and misty. Below the falls, the bare rock is in the process of decomposition, smooth and crumbly.

The first 164 m / 180 yd (12% slope avg) from the trailhead brings hikers to a small sakau hut in the woods. The narrow stream crosses the path 57 m (62 yd) further (16% slope avg). After that, the path fades into obscurity and it’s a challenging 489 m (0.3 mi) bush-whack scramble to the cliff and waterfall (47% slope avg). That’s not the end, however, by a long shot. If you pick your way across the rocks under the falls and along the slope for about 80 m (87 yd), you’ll come to the first cave of three. Partially hidden by a curtain of vines, this cave is well-protected from the elements and makes a good campsite. There are great views of Nett and Kolonia and some flat, dry ground.

About 130 m (142 yd) further is a second cave — this one forming a low, tunnel-like passage parallel to the hillside. Swiftlets nest on the roof and their guano covers the floor. Scramble through and you find yourself in the final cave, which is like a bay window looking out over the serene landscapes of Nett and eastern Sokehs. There’s really nothing like this spot on the island. Take care, however — the cavern opens onto a sheer (certainly fatal) drop to the valley below.

  • Plan for 3-6 hours for this hike.
  • Please visit the Local Guides & Tour Operators page for a list of experienced guides available for hikes to Nan Koropwung. Offer $25-37.00 for a group of five or less.

Map Guides >> Nett & Western U >> Nan Koropwung Cliff & Caverns

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