Ring-route with departure from Campaegli car park near the drinking trough. Follow the asphalt road for about 200m. Turn right on the dirt road running along Monte Castell'Amato and entering Valle della Lepre. At the entrance of the woodland, turn left until you meet a clear sheep track. From here the path coincides with paths 653 and 673c: going southwards, slightly climb to Boccette dei Tre Confini. Go ahead across the meadow and take a dirt road near a small drinking trough. Ignore the two roads on the left and go ahead until you reach a small pass and a large clearing. Leave the dirt road keeping the right along the mountainside, then cross the woodland again and return to the carp park (departure point).
Notes: almost entirely marked trail.