Krubera Cave, Abkhazia
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The Krubera Cave is located in the Arabika Mastiff of Abkhazia. The Arabika Mastiff is one of the largest high-mountain limestone karst mastiffs in the Western Caucus and houses the cave. The Kubera Cave is the deepest known cave on earth. Known also as the Voronja Cave, meaning “cave of the crows” in Russian, it became known as the deepest cave in the world in 2001 when the Ukranian Speleological Asociation got to a depth of 5,610 feet.
Then, in 2004, the expedition broke the speleology record when they reached a depth of over 6,600 feet. Exploration of the cave began back in the 1960s and has continued up until today.
