Puerto Princesa Subterranean River

The Puerto Princesa Subterranean River National Park  is located about 50 kilometres (30 mi) north of the city centre of Puerto Princesa, Palawan, Philippines. The river also called Puerto Princesa Underground River. 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, or St. Paul Underground River. The entrance to the Subterranean River is a short hike from the town of Sabang.

The Puerto Princesa Subterranean River also one of the world's longest underground river and the previous record holder of the longest underground river in the whole world. The Park is a UNESCO World Heritage Site and home to diverse species of plants and animals (flora and fauna). The park has over 800 plant species and over 300 animal species. Being 30 miles north of the city of Puerto Princesa (Palawan province), it is about 3 to 4 hours of travel by boat.

On November 11, 2011, it was provisionally chosen as one of the New7Wonders of Nature