The Hang Son Doong cave in a remote part of central Vietnam near the Laos border, is so big it has an entire jungle growing in it. The “cave” is actually part of a network of 150 or so caves, many still not surveyed.
National Geographic published a fascinating feature on the system back in 2011.
Originally published by Cosmos as Explore the amazing Hang Son Doong cave
Bill Condie
Bill Condie is a science journalist based in Adelaide, Australia.
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