The ring-route develops around Mt. Cala dominated by S.Giovanni Sanctuary, where you can enjoy a wonderful view over the lake and Val Camonica. The dolomite rock forms ravines and a detrital slope housing a flora of great geo-botanical interest also for the presence of Mediterranean endemic species. The forest setting made of oaks, hornbeams, and flowering ashes is populated by several bird species and small mammals. Towards Prato Sposa, the trail crosses an amazing pile of glacial boulders.