Park at Croix du Planil.
(S/E) Take theGR®7to quickly reach a crossroads at the edge of the forest.
(1) Leave theGR® here and turn right onto a slight incline. Continue through the woods, ignoring the path on the left that joins theGR® to reach the hamlet of Lemoine.
(2) Continue after a 90° right turn. You will come to a four-way crossroads; stay on the path straight ahead. Continue downhill, cross the Gier river and arrive at the crossroads with the path leading to Scie du Bost.
(3) Leave this path opposite and turn left to begin the climb. Continue to the crossroads leading to the Saut du Gier.
(4) Continue straight ahead to reach the point offering a beautiful view of the Saut du Gier and the climbing site.
Return to the crossroads, turn left (at a cairn) and continue the climb, which becomes difficult. There are numerous intersections and the markings are sometimes vague. Turn right at the first intersection and left at the second (but all the paths cross the forest track further up).
(5) As a sign that you are on the right track, you will cross a forest track and pass a sign indicating the shepherd's hut. Continue climbing, crossing the forest road.
(6) When you reach the shepherd's hut, turn right onto theGR®7, then a few hundred metres further on, cross the D8.6 road to reach the Crêt de la Perdrix crossroads.
(7) Take theGR® on the right and head for the Crêt and its orientation table.
(8) Retrace your steps to the previous crossroads.
(7) Turn right, leaving theGR® (be careful not to descend too far).
(9) At the next crossroads, turn left towards Crêt de la Chèvre. Once again, enjoy the view.
(10) Then head towards Col d'Étançon, leaving the path you came up on your left.
(11) At the hut, turn right, still heading towards Col d'Étançon.
(12) Take the path slightly to the right, which climbs gently to reach Crêt d'Étançon with ease.
(13) Continue on to Crêt du Rachat.
(14) Continue on your way to the next intersection.
(15) Head towards Crêt de la Botte (the building in front of you).
(16) Crêt de la Botte is a paragliding launch site and also offers a beautiful view of the Rhône Valley. Continue your hike for about a hundred metres along the road, then turn left to rejoin the path. Almost immediately, turn right towards the car park.
(17) Once you reach the car park, continue straight ahead to climb up to Crêt de l'Œillon and its antennas. The view is breathtaking. It's a good place to rest for a while if the wind isn't too strong.
(18) Return to the car park via the same route.
(17) Continue along the path you have already taken. On your left, you will find the path that took you down from Crêt de Botte. Leave it on your left and continue straight ahead.
(15) When you reach the crossroads that led to Crêt de Botte, turn right towards Creux de la Botte. Descend slightly and ford the stream in the Sara valley. The path winds through the woods, which is very pleasant on hot days.
(19) Start climbing gently again and follow a slightly curved path on the left to reach the Shepherd's Hut. When you reach the road, follow it to the Auberge de la Jasserie, where theGR®7is signposted.
(6) Turn right and begin the descent on theGR®7. At the next junction, turn left. The path begins to descend steeply on a stony track. The start is in the sun, but you will quickly find yourself in the shade of the trees.
(20) Stay on theGR®7, leaving the forest road on your left. Be careful, there are many crossroads along the way, so stay alert and follow the markings carefully. La Croix du Planil is now signposted 3.4 km away.
(21) Continue downhill and you will eventually come to the original crossroads at the edge of the forest.
(1) Retrace your steps to return to the Croix du Planil car park (S/E).

. The passage over the ridges is splendid, especially in good weather like today (it was an old dream of mine to walk along all the ridges without exception!).