A circular trek that starts in the heart of San Bernardino and leads first to the sports center and then to the lakes. The forest road follows the shores of San Bernardino Island Lake and soon reaches the dam. You then follow the paved road and reach the cantonal road, then follow the signs for Lagh de Pian Doss. Passing through the inhabited area of Fornas, a striking view of the lake landscape opens up: stopping for a picnic on the shores of the lake is almost a must! To return to the village, you can follow the hiking trail on the right side of the road and, along Acubona Street, cross the Concheta until you return to the village.