The Krubera cave (or the Voronya cave sometimes written Voronja Cave) is the deepest known cave on Earth. It is located in the Arabika of the Cordillera of Gagrinsky of the Caucasus Western massif, in the District of Gagra in Abkhazia, Georgia separatist Republic.
The difference in the height of the entrance of the cave and its deepest point is explored 2,191 meters (7.188 ft). Became the deepest cave known in the world in 2001, when the expedition of the Ukrainian Speleological Association reached a depth of 1,710 feet (5.610) exceeding the depth of the cave deeper before, Lamprechtsofen, in the Austrian Alps, 80 m.
In 2004, for the first time in the history of speleology, the expedition of Ukraine became the Speleological Association of greater depth of 2,000 m, and explored the cave - 2080 m (- 6,824 feet). Depth maximum current of 2,191 meters was achieved during a dive from 46 m by Gennadiiy Samokhin at the terminal sump during the expedition of the Speleological Association of Ukraine in August-September 2007. The cave remains the only cave known in the land beyond of 2000 meters.