 The waterfalls are located few meters from Valstagna main square and can be reached by taking the ancient stone stairs that connects the town centre to Contrada Torre.The Calieroni geosite consists of an almost vertical sequence of three natural pools.These ponds, or "marmite", are a typical phenomenon in a karst landscape and they have been created by the chemical erosion given by rainfalls and by the waters of the Frenzela torrent.