BBC news is reporting a new caving record:

A Ukrainian team has reached a record depth of 2,080m (6,822ft), passing the elusive 2,000m mark at Krubera, the world's deepest known cave.

The nine-strong group were part of a project that has made breaking the 2,000m depth its goal for four years.

From the pictures, this isn't one of those "spectacular stalactites and stalagmites" sort of cave. Rather, it looks more like the "cold, dark, muddy hole" sort that I used to trapse around in when I was in college.