See this at: gimundo.com| Added on 10/12/09

Only scientists are allowed inside the delicate Lechuguilla Cave in New Mexico's Carlsbad Caverns—so this amazing segment from the Planet Earth documentary is your only chance to get a glimpse inside this astonishing natural wonder.

Only scientists are allowed inside the delicate Lechuguilla Cave in New Mexico's Carlsbad Caverns—so this amazing segment from the Planet Earth documentary is your only chance to get a glimpse inside this astonishing natural wonder. See less