Puerto Princesa Underground River: A 7-minute journey inside a nature's wonder (Video)

Puerto Princesa Underground River, the longest navigable underground river in the world located in Palawan, Philippines, is a finalist  in the global search for the New 7 Wonders of Nature. Take a 7-minute journey inside this wonder of nature and discover its many amazing features through the Youtube video below:

Puerto Princesa Underground River in 7 minutes

Organized by Switzerland-based New7Wonders Foundation, the search for the New 7 Wonders of Nature started in 2009, where 77 entries were initially picked from 440 entries from more than 220 countries. Twenty-eight finalists were eventually chosen and are now vying for the top seven spots.The Top 7 will be selected through a world-wide online and SMS voting.

To vote for Puerto Princesa Underground River, visit the New7Wonders website or text PPUR to 2861.

Voting ends tomorrow, November 11, 2011.