New 7 Wonders of Nature - I go for the reputed longest navigable underground river in the World - Philippine's Puerto Princesa Underground River

The Puerto Princesa, Palawan, Philippines Underground River is reputed to be the longest navigable underground river in the World.

Where precious stones and crystals 
can be found. ;)

Turquoise that gives added splendor to the place.

Under study gemstones that glitter like diamonds and adorn the floor and the surrounding walls.

An awesome sight of crystals 

Of corals that blanket the high rise nature's wall

The Puerto Princesa Subterranean River National Park Philippines, features a limestone karst mountain landscape with an 8.2 km. navigable underground river.

A distinguishing feature of the river is that it winds through a cave before flowing directly into the South China Sea. It includes major formations of stalactites and stalagmites, and several large chambers. The lower portion of the river is subject to tidal influences.
  

At the mouth of the cave, a clear lagoon is framed by ancient trees growing right to the water's edge. Monkeys, large monitor lizards, and squirrels find their niche on the beach near the cave.

Take a short trip to

Puerto Princesa Underground River

PPUR - La Venta Discovery 

(Puerto Princesa Underground River)

Uploaded by devz123123 on Jun 8, 2011

La Venta Discover mineral that can only be seen 
in Puerto Princesa Underground River

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Website for above images

underground river in puerto princesa palawan philippines

Images may be copyrighted

Source: 

Wikipedia, Youtube &  

New7Wonders of Nature Organizers, 
PPUR La Venta

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