Original video by National Geographic Channel
National Geographic presents The World's Biggest Cave, a TV special that gives us a close-up look at Son Doong, a huge recently-discovered underground labyrinth in Vietnam.
http://www.threeland.com
National Geographic presents The World's Biggest Cave, a TV special that gives us a close-up look at Son Doong, a huge recently-discovered underground labyrinth in Vietnam.
http://www.threeland.com
Veröffentlicht 9 years ago
Schlagwörter National Geographic Biggest cave Son Doong Vietnam tour
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