Adham Nu'man - 2014-11-02
Just to clarify, when they refer to Hang Song Doong as the "world's largest cave" they refer to the diameter of its main passage, rather than its length or depth. I think it's a bit of a misnomer, and "most spacious cave" would probably have been a more appropriate (yet not quite as marketable) name.
The world's longest cave system is Mammoth Cave, in Kentucky, and the world's deepest cave is Krubera, in Georgia (the country, not the state).
Amazing video. Thanks for sharing
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