Park on the Couzon dam. Please note: at weekends, parking spaces fill up quickly, so it is best to set off in the morning.
(S/E) Head to the left bank and immediately take the path that runs along the riverbank. You will reach the small Couzon dam.
(1) Continue straight ahead. Follow the Couzon. At the intersection, take the left-hand climb to the hamlet of Seyoux. At the top of the hill, join the tarmac road.
(2) Turn left. Leave the three-way junction behind you, continue straight ahead and descend to the bottom of the valley.
(3) Cross the bridge over the Grand Valluy stream and take the path immediately to the left.
As you climb, keep to the right on the stony path. At the intersection, turn right into the woods, then continue straight ahead until you reach the tarmac road.
When you reach the tarmac, follow it to the wooden cross.
(4) Continue left along the road. Arrive at Sainte-Croix-en-Jarez.
Leave the car park on your left and turn left at the intersection. Continue to the junction with Route de Conty.
(5) Continue straight ahead along Rue des Portes, walk along the front of the Chartreuse and turn immediately left. Walk along the front again until you reach the cemetery.
(6) Cross a small footbridge, go around the cemetery by turning right, pass in front of its entrance and join the Route de Jurieux which goes uphill (the road on the right at the three-way junction). Continue straight ahead until you reach the hamlet of Thesay.
(7) At the first intersection, turn right in front of the houses onto the stony dirt track, pass the intersection again straight ahead in front of the cross and join the tarmac road. Continue straight ahead until the first intersection on the left.
(8) Turn left onto the steep tarmac hill until you reach the antenna at the top.
(9) Pass the Virgin Mary statue and immediately turn right, cutting across the fields straight ahead. Follow the hedges on the left as they descend towards the woods. Descend into the woods (watch out for brambles) until you reach the path (caution: barbed wire fences). Take it on the right, climbing up to the next intersection.
(10) Take the path on the left that climbs towards Les Roches de Marlin.
(11) At the top, turn right and continue straight ahead on the main path until the next intersection.
(12) Turn right, passing through the hamlet of Marlin. Please note: at the next three-way junction, take the road on the left that descends and keep left, continuing straight ahead to the bottom of the valley. Join the main road at the Croix du Trève crossroads.
(13) Take the dirt track that descends to the right. Join the Ruisseau de Boissieux.
(14) Cross it and continue on to the hamlet of La Conty. Go straight into the hamlet and take the road. You will come to a three-way junction.
(15) Keep right on Rue de Conty, which leads to the crossroads of the circular route you passed earlier.
(5) Follow the same route as on the way out to return to the Couzon dam car park (S/E).