The Puerto Princesa Subterranean River National Park, commonly referred to as the Underground River contains globally important habitat for biodiversity conservation, which includes a full mountain-to-sea ecosystem. A more thorough description and video of the cave and its faunal species dwellers are presented in this official site: http://www.puerto-undergroundriver.com/ as well as this UNESCO site: http://whc.unesco.org/en/list/652
This marker visibly welcomes everyone on the receiving area after the boats docking shore. Tourism officers and park's staff are all around the area helping guests and replying to their queries, even if each group has also their own tourist guides.
The main facade of the entrance to the Underground River. It is adorned with naturally growing epiphytes, orchids, vines, trees and many other plants and organisms.
The main and only entrance to the UR and cave, showing a boat full of tourists already on their way out.
These structures are very prominent and beautiful, made specifically by the minerals left when water flows on them. These are still actively growing because water still continue to drip along those lines carrying the cations to be deposited here that will eventually lengthen and enlarge them.
20 million year old Serenia fossil embedded in the walls of the cave justifies its declaration as one of the New 7 Wonders of Nature.
The entrance viewed from inside on our way out. It takes at least 45 minutes to navigate the entire cave.
Those horizontal lines at the foot of the rocks are caused by levels of water because of the changing tides.
This is already the close-up of the UR facade showing the wall with criss-crossing boulders.