UNESCO has recognized it as a World Heritage Site and it has a reputation of being the world's longest underground river. The Subterranean River Cave is one of the most visited national park in the Philippines. It is now being managed by the government of Puerto Princesa under a program of development centered on environment.
The Subterranean National River Park is also known as the Underground River in Palawan. It is a must see and it is worth it to visit.
