The beauty of Puerto Princesa underground river : Palawan

The 8.2 km-long (5 mile) Puerto Princesa Subterranean River National Park was listed as a UNESCO World Heritage Site on December 4, 1999, for its ecological value, and features a limestone formation containing an underground river that is reputed to be the longest navigable underground river in the world. An effort is being made to have the park voted as one of the new seven wonders of nature.

Puerto Princesa Mayor Edward Hagedorn (C) sits with New Seven Wonders Foundation President Bernard Weber (3rd R) and Director Jean-Paul de la Fuente (2nd L) on a banca as it passes under a mushroom-shaped rock formation inside the Puerto Princesa Subterranean River National Park at Kabayugan town, in Puerto Princesa, Palawan, western Philippines October 23, 2011. The 8.2 km-long (5 mile) Puerto Princesa Subterranean River National Park was listed as a UNESCO World Heritage Site on December 4, 1999, for its ecological value and features a limestone formation containing an underground river that is reputed to be the longest navigable underground river in the world. An effort is being made to have the park voted as one of the new seven wonders of nature. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY ENVIRONMENT)