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 .
Siebenhengste-Hohgant-Höhle
In 2010, it was the world's 11th longest cave, with a 154-km development. It is also the world's 22nd deepest cave at 1,340 m deep.