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Published on Apr 29, 2011
Veteran photographer and National Geographic grantee Carsten Peter is also an accomplished climber, diver and caver who has photographed some of the world's most extreme environments. Here he shares stories and images from a cave system in Vietnam that may be the world's largest. ➡ Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.