Голубое оз. /Blue lake
★★★★★
(15)
Karst lake. Current depth is 21 m. Previously, in the northern part of the lake at a depth of 27 m there was an entrance to a cave. At the moment, the entrance to the cave is blocked.
The entrance to the cave leads to a gallery with a descent of up to 42 m. The gallery has been explored for 150 m. A passage has been laid for the first 50 m.