The Su Marmuri Caves are among the most impressive in Europe, stretching for about 850 meters with heights reaching 70 meters.
The caves are famous for their spectacular stalactite and stalagmite formations, as well as two suggestive underground lakes. The largest room, called the Sala Grande, extends for 72 meters. Other notable rooms include the Sala dell’Organo and the Sala del Cactus, characterized by formations that resemble an organ and a cactus respectively.
The caves can be visited from March/April until October, with guided tours that vary according to the season.