Onferno Grotte, Limestone cave museum in Gemmano, Italy
The cave system extends 400 meters through gypsum formations, featuring multiple chambers and passages shaped by water erosion over thousands of years.
The caves, discovered in 1916 by Lodovico Quarina, were initially used for gypsum extraction until the 1950s when local mining operations ceased.
The name changed from Inferno to Onferno in 1810 when the Bishop of Rimini decided to remove references to demons in the village designation.
Tours operate daily from June to September, with weekend availability during other months, and admission costs 10 euros for adults and 8 euros for children.
The cave system houses over 8000 bats from seven different species, maintaining a constant temperature between 12 and 13 degrees Celsius throughout the year.
Location: Gemmano
Address: Via Provinciale Onferno, 50 47855, Castello di Onferno RN
Phone: +393891991683
Website: http://onferno.it
GPS coordinates: 43.87311,12.54589
Latest update: March 4, 2025 22:30
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