The starting point is at Place de la Liberté, where parking is available.
Yellow markings.
(S/E) Go to the marker located on Rue Richard Perrin near the traffic lights. Head towards "Philibert Gaillard" via Rue Richard Perrin, then Rue Pierre Dupont.
(1) After a slightly narrower passage, turn left onto Rue Philibert Gaillard. At the "Philibert Gaillard" signpost, follow the direction of "L'Écoran" via Rue de L'Écoran. At the "L'Écoran" sign, follow the signs for "Les Paupières". At the "Les Paupières" sign, follow the signs for Pélossey via Chemin de l'Écoran. The path narrows as it climbs and joins a road (Rue Jacques Jarnieux). Follow it to the right until you reach a crossroads.
At the crossroads, take the cul-de-sac that climbs opposite and after a few dozen metres, take the narrow path that branches off to the right, towards "Tour de Couzon".
The path joins another, wider path, which you follow to the left uphill to the crossroads.
No markings.
(2) After the remains of the aqueduct, continue uphill and follow the path straight ahead (blue cross on a marker and yellow cross on a tree a little further on). The path runs along walls and passes close to the old Couzon quarries before reaching the entrance to an old tunnel.
Go through the two small tunnels in a row. Each tunnel is a few dozen metres long. Do not take the tunnels that branch off to the left.
(3) A few metres after the exit of the last tunnel, take the small (fairly unmarked) path on the right. This quickly turns left and climbs between two walls.
About fifteen metres after a collapsed wall and a passage between two trees, turn right. The path joins the edge of a sloping grassy field, which it crosses, passing under a power line. A few metres after leaving the field, and before entering another field, the path comes to a crossroads on a flat area. Take the path on the right, which immediately enters the woods.
At the crossroads with a sign for "Anciennes carrières" (old quarries), turn left. The path leads to a wider, grassy path at the entrance to a field on the right. Turn left onto this path, leaving the entrance to the field behind you. At the first crossroads, take the small grassy path on the right, which quickly turns into a narrow and rather inconspicuous path. Follow this path, continuing downhill to the left into the woods.
The path crosses a wider track before continuing straight ahead up a fairly steep but not very long climb. The path is then almost flat and, after about 250 metres, leads to the remains of a large stone wall near the top of a small sloping field. Follow the path up the wall to a crossroads in the woods.
At the crossroads, turn left and join a road. Take the road on the right until you pass under a high-voltage power line and find the "Génie" marker on the left.
Yellow markings.
(4) Follow the signs for Couzon-Au-Mont-d'Or. The path is on the right, under the power line, and descends towards Couzon. Initially, the path crosses the road several times, then crosses the open space under the power line and enters a wood.
At the edge of the woods, the trail runs alongside several properties before joining a road. Turn left onto the downhill road and follow it for about 100 metres. At the bend, take the path on the right that leads into the woods and comes out onto a street (Rue Rochon) opposite a small wash house.
No signposts.
(5) Take this street on the left, going downhill to the bridge over the railway tracks.
Yellow markings.
(1) Shortly after the railway tracks, make a round trip to the church on the left, then return to the starting point via Rue Pierre Dupont and Place de la Liberté (S/E).
