Route: San Martino - Montespecchio � Castelluccio. Duration: 3 hours 45 mins (outward leg) � 3 hours 15 mins (return). Height difference (outward leg): 700 mts (ascent) - 450 mts (descent). Length of route: 14 kms. Difficulty: (E) hikers. Points of interest: hamlet and Church of St Martin; Montespecchio panoramic viewpoint; Carli rock geological point of interest; hamlet of Castelluccio.