The World's Biggest Cave
In 2009 a team of British cavers went on an expedition deep within the jungle of central Vietnam. To their amazement they discovered an enormous cave which they believe to be the biggest in the world. The team, the first humans ever to enter the cave, traveled 6 kilometers underground until their way was blocked by a gigantic rock face they dubbed 'The Great Wall of Vietnam'. Now they have returned, but this time with the right equipment to climb the wall and with a geologist and zoologist to discover if this is indeed the Biggest Cave in the World and what secrets lie deep within?
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Cast
1 person
United States release November 7, 2009 · Produced in Vietnam, United States
Production
National Geographic
Production
Vietnam · United States
Produced in
Languages
Original language
English
Spoken on screen
English
Release dates
United States · November 7, 2009
Theatrical
Some details come from TheTVDB.