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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'
Hang Son Doong is the world's largest known cave ... was born from the compressed shells and skeletons of ancient sea animals ...
National Geographic news1mon
How to trek to two of the world’s largest known caves
This story appears in the June 2019 issue of National Geographic magazine. Italian physicist and photographer Alessandro Cerè took a break from work at the Centre for Quantum Technologies in ...
BBC1y
Lighting the darkness in one of the world's largest caves
Animals were quick to colonise and now dozens ... Discovered in 1992, Hang Va cave (pictured) is hydrologically connected to Hang son Doong and although much smaller, it hides a remarkable world.