Boybuloq Cave
The cave is the deepest known cave in Asia having been explored to a depth of from the entrance. At the lowest discovered level a water-filled siphon blocks further exploration. It is thought that the cave has the potential to be the deepest known cave in the world, with a theorised depth of making it deeper than the Veryovkina Cave. The explored length of the cave is .
Levan Maruashvili
Levan Iosifovich Maruashvili ( born 25 October 1912, Novocherkassk, Russian Empire, — 5 December 1992, Tbilisi, Georgia) was a prominent Georgian geographer. Doctor of Geographical Sciences (1954), professor (1965). Honored Scientist of the Georgian SSR (1966) and Abkhaz ASSR. Honorary member of the Russian Geographical Society (1985). He introduced a new concept of karst-sphere into the science. Krubera Cave, which is the world’s deepest known cave (2197 m), was discovered by the Georgian researchers in 1960 by the leadership of Professor Levan Maruashvili.