From the Cabane de Moiry, follow the same path down to the parking lot below. Cross the car park and take the path up the left bank to join the other section of Chemin 2500. First you pass Lac du Lauché, then Alpage de Torrent. Continue towards Sex de Marinda, crossing Basset de Lona and Lac de Lona, before arriving at Cabane des Becs de Bosson.
