National park · Philippines
Puerto Princesa Subterranean River National Park

Puerto Princesa Subterranean River National Park on Palawan in the Philippines protects a long underground river that flows through a limestone cave into the sea. The surrounding area has forest and karst hills. Visitors tour the cave by paddled boat, and it is a UNESCO World Heritage Site.
- Coordinates
- 10.1667° N, 118.9167° E
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