From Saint-Bonnet-en-Champsaur, take the N85 towards La Mure. Stop at the business park near the junction with the D985a. Park in the car park next to the road, opposite the Maison de Pays du Valgaudemar.
(S/E) Take the road leading into the industrial estate. Keep well to the right, alongside the SAMSE. The start of the path is signposted at the end of the tarmac road, on the left. This is the actual start of the forest walking trail.
(1) Follow the path to the left. Turn right at the first junction, then left at the second, heading towards the castle. You’ll come to a fork in the path leading to the castle.
(2) Head towards the castle. Take the opportunity to visit it, then continue along the path until you reach the road.
(3) Follow the road to the left for 500 m until you reach the first path on the right.
(4) Take this path, which climbs through the forest. The route is then well signposted. You’ll reach the hamlet of La Villette. Carry on until the second left-hand bend, then turn right onto the descending path. At the road, turn right, then left onto a path. Keep to the left until you reach the canal.
(5) From the canal’s water intake, the path descends particularly steeply to the car park at the Maison de Pays (S/E).