9. The Krubera Cave
Depth: 7,208 feet (2,197m)
We are continuing our list of biggest deepest holes in the world with the Krubera cave that is the deepest cave on Earth, in the Western Caucasus in Abkhazia, Georgia. It also has an impressive length of 8,346 miles (13.432 m). Just think about it, even if you could just walk straight to the bottom it would take you a while to reach it. Now imagine crawling through those small passages, and using safety equipment. Only experienced speleologists now how long it takes to get to the bottom, as well the exhilarating experience when they reach their goal.
