The cave consists of an Upper Hall filled with stalactites and stalagmites, connected with five passages with drops of 40-150 feet / 12-45 m to a smaller hall. Beyond this point a series of narrow holes lead to a further succession of chambers, reaching a depth of some 250 ft / 62 m.

During WWII the cave was prepared as an emergency hospital, but was never used, it's entrance is now the tourist exit. The cave is now opened to visitors and makes a unique auditorium for concerts, ballet and drama. Son et lumiere shows are staged throughout the year.