It is located close to Gara Lakatnik, 140 meters above the Iskar River. It is 316 meters long. The stalactite formations are on the cave’s arch, not on the walls, as usual. This is due to the wide cracks. The cave in winter is inhabited by bats, and the archaeological finds have found that people of the Iron Age once lived here. Beautiful and very interesting, the cave is inhabited by over 32 species of different organisms.