Puerto Princesa underground river national park is the new 7 wonders of Nature. Inside the cave would cover the first kilometers of this 8.2 km. underground river known to be the longest navigable in the world.
Sort: Trending
Puerto Princesa underground river national park is the new 7 wonders of Nature. Inside the cave would cover the first kilometers of this 8.2 km. underground river known to be the longest navigable in the world.