A jungle inside a cave? A roof collapse long ago in Hang Son ... We’re squatting around the fire just inside the entrance to Hang En, the mile-long portal that tunnels beneath a ring of ...
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Hang Son Doong: The world's biggest cave, so 'outrageous in size' it fits 2 jungles and the 'Great Wall of Vietnam'The limestone cavern sits beneath a lush jungle in Vietnam's Phong Nha-Ke ... Research Association that included Limbert to ...
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