Devil's Throat Cave is a cave located in the Rhodope Mountains of Bulgaria. The cave is one of the largest in the country and is home to a variety of rare and unique species, including the olm, a blind salamander. The cave is known for its impressive stalactites and stalagmites, as well as its underground river which flows through the entire length of the cave. Visitors can explore the cave by boat or on foot, and there are also several trails that lead to different parts of the cave.