Conquering endless cave (18 photos)

Over the last year in Vietnam was opened twenty new caves, including a giant cave Han Song Dung (the name can be translated as "Cave of the mountain river"). In fact the local tribes living in the jungle have long known about the cave, but they were afraid of her because of the whistling sound that emits an underground river flowing into the cave. World public opinion learned about this miracle of nature only in 2009, when a group of British researchers from the British Association of cavers (BCRA) examined the cave. The studies were conducted from 10 to 14 April 2009.


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