Underground River Pictures

The Puerto Princesa Underground River is located about 50 km north of the city of Puerto Princesa, Palawan, Philippines. It features a limestone karst mountain landscape with an 8.2 km. navigable underground river. A distinguishing feature of the river is that it winds through a cave before flowing directly into the South China Sea. It includes major formations of stalactites and stalagmites, and several large chambers. The lower portion of the river is subject to tidal influences. The underground river is reputed to be the world's longest. At the mouth of the cave, a clear lagoon is framed by ancient trees growing right to the water's edge. Monkeys, large monitor lizards, and squirrels find their niche on the beach near the cave.

Boat to the underground river. Photo #4 by by aSIMULAtor

After a 2-hr walk in the Monkey Trail, we reached PP Underground River. Photo #5 by Joan Villarante-Kavianifar

Jungle trekking is listed among favorites to do on Puerto Princesa, Palawan. This is the way to Monkey Trail, Sabang. Photo #17 by Gezelle Rivera

Going through the Puerto Princesa Subterranean River National Park. Photo #14 by aSIMULAtor

Besides the Underground River, the area boasts a number of cave systems for cave adventure exploring. Climbing Ugong Rock allows one to view the surrounding natural beauty. Other areas to explore include the Lions Cave and the Daylight Hole. Photo #13 by Ryan Altamera