The Puerto Princesa Subterranean River is referred to as world’s longest underground river. This wonderful 8.2 km River is located along the mountain landscape of Subterranean National Park and includes a large number of giant chambers having a height of 6 ft and width 12 ft and many speleotherms. The limestone mountain has major stalagmite and stalactite formations and extensive Karst features of both Underground River and surface Karst. River’s lower portion is subject to strong tidal influences and is brackish.
The most distinguishing feature of this underground river is its flow through a cave and then falling into South China River. The underground river arises southeast of the Mount Saint Paul 2 km approximately at huge altitude of some 100 meters and flowing entirely through underground channel, it outflows into the St. Paul’s Bay. All linked tributaries and rivers are along the Puerto Princesa. Two-thirds of this National Park is approximately forested and largely dominated by rare hardwood species making it a significant habitat of particular biodiversity conservation. The forests present here are the most important forests of Asia and the ecosystem is fully mountain-to sea.
- The underground river possesses one of the world’s famous tropical forest settings.
- The Palawan Moist Forest is considered as a World heritage site by experts due to its extensive potential.
- The bio-geographic setting of the province is among most important related places of the world.
Best time to visit:
Starting summer months are the best time to visit this place when seas of surrounding area are usually calm. Annual average temperature is 27 degree Celsius which makes it comfortable however humidity is relatively high for this place.
The Puerto Princesa underground river is located in Puerto Princesa city which is capital of the Palawan, Philippines. See on map.