Puerto Princesa Subterranean River National Park

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Puerto-Princesa Subterranean River National Park*
UNESCO World Heritage Site

Sabang daylighthole.jpg
State Party Flag of the Philippines Philippines
Type Natural
Criteria vii, x
Reference 652
Region Asia-Pacific
Inscription history
Inscription 1999  (23rd Session)
* Name as inscribed on World Heritage List.
Region as classified by UNESCO.

The Puerto Princesa Subterranean River National Park is located about 50 kilometers north of the city of Puerto Princesa, Palawan, Philippines. The National Park is located in the Saint Paul Mountain Range on the northern coast of the island. It is bordered by St Paul Bay to the north and the Babuyan River to the east. The City Government of Puerto Princesa has managed the National Park since 1992. It is also known as St. Paul's Subterranean River National Park. The entrance to the Subterranean River is located a short hike from little town of Sabang.

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. Until the 2007 discovery of an underground river in Mexico's Yucatan Peninsula [1], Puerto Princesa's underground river is reputed to be the world's longest.

The area also represents a significant habitat for biodiversity conservation. The site contains a full mountain-to-the-sea ecosystem and has some of the most important forests in Asia.

It was inscribed by the UNESCO as a World Heritage Site on December 4, 1999.

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Coordinates: 10°10′N, 118°55′E