Proceed along route 1, turning left towards the farm of La Pieve (which offers an excellent view), and descend for 3.5km until you emerge on the floodplain of the Lodano stream, near a small lake.
Head left, hugging the lake and then the stream. The road dwindles to a path and its signposting ceases to be obvious: avoid stumbling down paths and ditches that arc away on the left slope and run down to the bottom of the valley. Having reached the first clearing, you walk (or pedal) into the thick woods, and from the second clearing onwards you keep to the riverbank until you come to the start of the path.
A little further on you reach a junction: curve to the left, following the signposts that indicate route no.1. Climb for 1.3km and then come down towards Podere I Colli; at the next crossroads, turn right onto the wooded dirt path, which has a loose, stony surface, and descend towards Pian delle Vigne.
Having come to an old bridge, turn left and traverse the floodplain until you come to another crossroads 1km ahead. Continue across it, still heading left, in the direction of Podere La Cerreta.