Route: Maserno - San Martino. Duration: 1 hour 30 mins (outward leg) � 2 hours (return). Height difference (outward leg): 110 mts (ascent) - 295 mts (descent). Length of route: 6,5 kms. Difficulty: T/E tourist/hikers. Points of interest: oratory with frescoes from the XV century at Riva di Biscia (Maserno) � Mamino watermill on the San Martino river � St Martin�s church.