Krubera Cave is the world’s deepest cave. It’s located in the country of Georgia which is somewhere between Western Asia and Eastern Europe. Krubera was discovered in the 1960s. However, due to a lack of gigantic balls of steel, the super cave wasn’t completely explored until 2001. It’s the only know cave to reach a depth over 2km (1.24 miles) and when mapped out the cave reaches 13.4 km (8.3 mi) which requires 27 days to complete the round trip.
This underwhelming opening opens up to the massive cathedral below.
Say goodbye to daylight and 27 days.