The site was continuously occupied by paleo-humans for tens of thousands of years, served as a shelter for a variety of animal species during extensive periods and is now home to nearly 30,000 bats.

Now part of a public park, that includes a waterfall, the 2 km (1.2 mi) long karst cave formed from the dissolution of soluble rocks, characterized by sinkholes and an underground river.

During the breeding season of mammalian species in the cave from early June to the end of July, the site is entirely closed to visitors.

Twelve species of protected amphibians and reptiles, including the Aesculapian snake (Zamenis longissimus), the Triturus (Triturus cristatus), the European tree frog (Hyla arborea), Hermann's tortoise (Testudo hermanni), eighty-two bird species can be found in the area, thirteen of which are included in the Red List.

[6][7] After a fatal accident during the filming of a stunt, the production team again clashed with the authorities over damages to the cave.