The Voronja cave, which is currently considered the deepest cave in the world, has a depth of 2191 meters (7188 feet), and it’s also the first cave to be explored at a depth of more than 2km.
In 2007 an expedition of 56 people explored it, but they say that it could be even deeper than it’s currently known.
The name is translated as Crow’s Cave and it’s located in Georgia, near the Black Sea.
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