Puerto Princesa Subterranean River National Park

A must-see for first time visitors and tourists in Palawan. The longest navigable underground river and reputedly the most beautiful subterranean river in the world.

Its main attraction is an 8.2 kilometer Underground River that winds through a spectacular cave before emptying into the South China Sea.

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.

Visitors can also enjoy bird watching, mountain trekking, and exploring the deeper part of the forest .

The park was declared a premier ecotourism destination and has been inscribed in the UNESCO World Heritage lists for its outstanding universal value and ecological significance as a natural site of intense beauty.

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The Puerto Princesa Subterranean River National Park 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.