The cave belongs to this underground landscape, characterized by an extensive karst system that, together with other geosites in the Vena del Gesso Romagnola, defines the site "Karst and Caves in the Evaporites of the Northern Apennines," inscribed on the UNESCO World Heritage List in 2023.
The Tanaccia Cave consists of several chambers, accessible along the course of a small underground stream that flows through the Sala delle Sabbie, rich in gypsum pendants, the large Salone del Crollo, the Sala del Laghetto, and the Sala Piatta.
The spacious main cavern of the cave is the ancient resurgence of the vast karst complex of the same name. Like all cavities in the gypsum, the interior of Tanaccia displays various striking forms of erosion.
The Tanaccia Cave is also an archaeological site, showing human presence for funerary purposes between the Copper Age and the Bronze Age.
In front of the cave lies the former Marana Quarry, created by gypsum extraction activities, where visitors can see an artificial lake with clear and silent waters.
Both sites can be visited on a guided tour or speleological excursion organized by the Park Authority guides, starting from the nearby Centro Visite e Rifugio Ca' Carnè or from the parking area near the cave.
