Park at the Passage du Tour car park, just before or just after the start of the hike depending on which direction you’re coming from.
(S/E) Take the forest track running more or less parallel to the access road to the car park, following the sign for "Pré de Cinq Sous": the start is a gentle climb, which then becomes steeper. The first hour on the track isn’t particularly interesting, but the ridge walk that follows is more enjoyable.
(1) Leave the track and take a path on the right, following three consecutive hairpin bends.
(2) Once at the third hairpin, leave the path leading to the Col des Marchands on your left and continue straight on.
(3) Carry on straight ahead again to reach the Pré de Cinq Sous.
(4) Turn right onto the path that climbs straight up towards the overhanging cliff and joins it at the Pas de Pourceau.
(5) Turn right and follow the ridge of the Montagne de Musan towards the Pas de la Pierre. You’ll come out onto the tarmac road leading to the Rocher de Chantemerle telecoms relay station; follow it to the right for about fifty metres.
(6) Leave the road and rejoin the path on the left. Continue along the ridge to Pas de l'Aulagnier.
(7) A sign reads “Difficult”: perhaps a slight exaggeration, but the start is quite steep through the leaves. Best avoided after rain. Reach the junction of the Véreires paths.
(8) Continue straight ahead. The path follows the ridge of Montagne du Sey for a short while, then turns left to descend into the Ravin de l'Écalon and eventually reaches Champ Riant.
(9) Continue to the right along a stony path between the mountain pastures, and return to the Passage du Tour car park (S/E)