The Puerto Princesa subterranean river is nominated as one of the New 7 Wonders of the World. It was once called the St. Paul underground river and is also popularly known as Puerto Princesa Underground River by locals.
Palawan Underground River
The underground river as well as the forest canopy is home to 165 of the 252 bird species endemic to Palawan like the White breasted sea eagle, Palawan hornbill, Blue-naped parrot, Tabon scrub fowl and the Hill myna.
The Palawan Underground River 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.