Puerto-Princesa Subterranean River National Park, Philippines

The Puerto-Princesa Subterranean River National Park site in the Philippines was inscribed on the World Heritage List in 1999. The site’s topography varies from flat plains to rolling hinterlands and hills to mountain peaks, encompassing a complete mountain-to-sea ecosystem and providing significant biodiversity conservation habitat. One of the park’s unusual features is its spectacular limestone karst landscape (shown here), with its underground river emerging directly into the sea.

Today, over 40 World Heritage sites are listed for their marine values. Together, they can be considered the “Crown Jewels of our Ocean” and are recognized for their outstanding beauty, exceptional biodiversity, or unique ecological, biological, or geological processes. Learn more about this and other marine World Heritage sites.

<p>The Puerto-Princesa Subterranean River National Park site in the Philippines was inscribed on the World Heritage List in 1999. The site’s topography varies from flat plains to rolling hinterlands and hills to mountain peaks, encompassing a complete mountain-to-sea ecosystem and providing significant biodiversity conservation habitat. One of the park’s unusual features is its spectacular limestone karst landscape (shown here), with its underground river emerging directly into the sea.</p>
Paul Chin

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