Krubera Cave is the second-deepest-known cave on Earth, after the Veryovkina Cave. It is located in the Arabika Massif of the Gagra Range of the Western Caucasus, in the Gagra District of Abkhazia, a partly recognised state, previously part of Soviet Georgia.

Veryovkina Cave is a cave in Abkhazia, internationally recognized as part of Georgia. At 2,223 meters (7,257 ft) deep, it is the deepest-known cave on Earth. Veryovkina is in the Arabika Massif, in the Gagra mountain range of the Western Caucasus, on the pass between the Krepost and Zont mountains, close to the slopes of Mount Krepost. Its entrance is 2,285 metres (7,497 ft) above sea level. The entrance of the cave has a cross section of 3 m × 4 m, and the depth of the entrance shaft is 32 metres (105 ft).