Re:Son Doong Cave Is So Big It Has Its Own Rainforest (2019)
by SapporoChris on Sunday June 25, 2023 @07:34AM
(#36467131)
https://en.wikipedia.org/wiki/Hang_S%C6%A1n_%C4%90o%C3%B2ng
A bit more information and some nice photos also.
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