Uhlovitsa is a show cave in the Smilyan area of the Rhodopes, formed in karst limestone and featuring a small river flowing through a series of chambers with modest stalactite formations. It is less dramatic than the Devil's Throat at Trigrad but more intimate — a guide takes small groups through the cave on a lit walkway, and the riverside pools at the entrance allow paddling in clear water.
The cave sits in the Blue Pools nature area (Sinite Virove), where the river forms a series of small turquoise pools visible from the road. The pools themselves are a popular summer destination for Bulgarian visitors, who wade in the cold, clear water on hot days. The cave and pools together make a pleasant half-day excursion from Smolyan.