| Shuanghedong | |
|---|---|
| 双河洞 | |
  | |
| Location | Suiyang County, Guizhou, China |
| Coordinates | 28°14′31″N 107°16′34″E / 28.24199°N 107.27608°E |
| Depth | 912 metres (2,992 ft) |
| Length | 417.7 kilometres (259.5 mi) |
| Geology | Limestone |
| Entrances | 111 |
| List of entrances | see text |
Shuanghedong (Chinese: 双河洞; pinyin: Shuānghédòng; lit. 'twin rivers cave'), is the longest cave in China,[1][2][3] in Asia, and the 3rd longest in the world as of May 2023.[4][5][6][7][8][9][10]
It is located near the town of Wenquan in Suiyang County, Zunyi, Guizhou Province.[11]
The cave contains numerous waterfalls, and at least three underground rivers, some of which contain cave shrimp, and fish weighing several pounds.[12] Tadpoles, frogs, salamanders, insects, spiders, bats, leeches, blind fish, and mushrooms have also been found.
Since 1987, at least 20 expeditions from France and Japan have explored the cave.[13]
In May 2023 the network reaches 400 kilometers of development.[14]
