Puerto Princesa Underground river tour shore excursion UNESCO

The Puerto Princesa Underground River (PPUR), inscribed as a UNESCO World Heritage Site on December 4, 1999, is a globally renowned natural wonder located in the Philippines. Recognized as the world’s longest navigable underground river, this extraordinary site stretches over 8.2 kilometers and winds through a magnificent cave system beneath the Saint Paul Mountain Range. It is not only celebrated for its impressive length but also for its breathtaking limestone karst landscape and unique biodiversity. The underground river's ecological and geological value led to its designation as a UNESCO site and as a protected wetland under the Ramsar Convention. In 2012, it earned further global recognition when it was named one of the New 7 Wonders of Nature, solidifying its status as a must-see destination for both nature lovers and adventure seekers.

The highlight of a visit to PPUR is the guided boat tour through the first kilometer of the underground river, which offers a surreal journey into a world of natural artistry. As visitors glide silently on paddle boats through the dimly lit cave, they are awestruck by the intricate formations of stalactites and stalagmites that resemble religious figures, mythical creatures, and architectural marvels. The cave’s cathedral-like chambers and natural rock formations have been shaped over millions of years, showcasing nature's slow and meticulous work. Beyond its scenic appeal, the underground river is also home to a complex ecosystem, harboring species that are uniquely adapted to the cave environment. This fusion of natural beauty, geological wonder, and ecological importance makes the Puerto Princesa Underground River a jewel of global heritage and a symbol of nature’s enduring majesty.