Start at the roundabout at the entrance to Châtel-Guyon.
(S/E) Join the Thermal Express track and follow it to the left (do not take the tarmac road that runs parallel to it).
(1) Go under the bridge and continue straight ahead.
(2) At the end of this road, turn left onto the path that runs alongside the ring road. Turn left again at the next path that goes uphill.
(3) At the top, next to the road bridge, turn right. Continue straight ahead until you reach the junction with Chemin des Vignerons.
(4) Turn left and go straight ahead, crossing the residential area. Continue to the top of the hill, which leads to the Châtel-Guyon road (D227). Follow this road for about 100 metres.
(5) Turn left onto the path.
(1) Cross the bridge over the Thermal Express and turn right.
(S/E) Continue straight ahead to the starting point (S/E).