Amazing Places

Son Doong Cave Is So Big, It Has Its Own Rainforest

The Son Doong Cave in Vietnam boasts the largest cave passage in the world. This huge and intricate cave system was created by water that had percolated down from a rainforest above, carving into the rock. Inside the cave sits a flourishing jungle, which grows 200 meters below ground level in an area where the cave roof has collapsed.

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Key Facts In This Video

  1. Son Doong Cave is home to its own rainforest, which flourishes where part of the cave roof has collapsed. 00:22

  2. See some of the organisms that live in Son Doong Cave: 00:55

  3. Mist gathers as part of Son Doong Cave's microclimate. 01:47

Written by Curiosity Staff May 22, 2015