Puerto Princesa, Palawan Underground River

1. Address - Puerto Princesa, Palawan, Philippines Highlights - Longest navigable subterranean river in the world (5mi). Set in a limestone mountain surrounded by beautiful rock formations, picturesque cyan-blue waters, and dense jungles. A small trek down a trail leads to the entrance of the cave and along the way long-tailed Macaques greet you from the jungle’s edges. Most are just curious and will sit for pictures, but be careful with your belongings as some can be thieves! Rating - 9.5/10 #summervacation #nationalpark #naturalwonders #beaches #monkey #cave #exploring #beautifulnature #underground #river #palawan #puertoprincesa #tour #tropical #jungle #rockformation #philippines