Krubera (Voronya) the deepest vertical cave. Krubera Cave (Abkhaz: Ӡоу Аҳаҧы, Georgian: კრუბერის გამოქვაბული or კრუბერის ღრმული, romanized: k’ruberis gamokvabuli or k’ruberis ghrmuli; also known as Voronya Cave, sometimes spelled Voronja 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. The difference in elevation of the highest cave entrance (Arbaika) and its deepest explored point is 2,199 ± 20 metres (7,215 ± 66 ft). It became the deepest-known cave in the world in 2001 when the expedition of the Ukrainian Speleological Association reached a depth of 1,710 m (5,610 ft) which exceeded the depth of the previous deepest-known cave, Lamprechtsofen,