sixpenceee: Er Wang Dong is a large cave in Wulong County in South-Central China. It has a length of 42,139 meters with a maximum depth of 441 m. It is large enough to contain its own weather system.
sixpenceee: Er Wang Dong is a large cave in Wulong County in South-Central China. It has a length of 42,139 meters with a maximum depth of 441 m. It is large enough to contain its own weather system.
