Inside the World’s Largest Cave
A journey in the center of the Earth, at the heart of the biggest cave of the world in the province of Quang Bing in Vietnam.Discovered in 1991 by Ho-Khanh, an inhabitant of the district of Bo Trach. On the border of Laos, this vast subterranean gallery makes approximately 9km of length, 200m of wide and 150m of height. Dug by a river there is between 2 and 5 million years.
Thanks to National Geographic for these magnificent images.