The Puerto Princesa Subterranean River is another UNESCO World Heritage Site. The river is located about 50 km north of Puerto Princesa City in Palawan. It has been nominated for the "New 7 Wonders of Nature".It is one of the most biologically diverse conservation areas in the Philippines. The Puerto Princesa Subterranean River National Park has more than 800 plant species, 165 bird species, and 30 mammal species.
The park has a limestone karst mountain landscape and many form
ations of stalactites and stalagmites, and several large chambers. It has one of the most impressive cave systems in the world. Aside from its spectacular limestone formations, it also features lush tropical forests and pristine white sand beaches.Puerto Princesa Subterranean RiverNational Park is an established ecotourism destination in the Philippines. It is reputed to be the longest underground river in the world.





