Deepest cave system on earth

The deepest cave on the face of the earth is Krubera Cave, sometimes called Voronja Cave and is located in the Arabika Massif of the Gagrinsky Range of the Western Caucasus. It became recognized as the deepest cave in 2001 when the Ukrainian Speleological Association reached a depth of 5,610 ft., a deeper distance than the previous holder of that title, Lamprechtsofen in the Austrian Alps.