Puerto Princesa Subterranean River
10.1833°N, 118.9167°EOPEN YEAR-ROUND
One of the world's longest navigable underground rivers, winding 8km through a Palawan, Philippines cave system to the sea.
Nature & WildlifeNatural WondersUNESCO World Heritage
One of the world's longest navigable underground rivers, winding 8km through a Palawan, Philippines cave system to the sea.