Park your cars at the end of the road that crosses the hamlet of La Blonniere (Dingy Saint-Clair), at the Saugny car park.
(S/E) Cross the pasture on the right towards the "Col de Pertuis", go around the ridge and arrive at a track in a valley.
(1) Follow it to the left until the end.
(2) Take the steep path on the left that climbs into the forest (signs are scarce) until you reach a track.
(3) Cross it (you can go left) and climb up until you find the track again in a hairpin bend. Continue climbing, then follow the path to reach the Col de Perthuis (1,566 m).
(4) Continue along the path that crosses the meadow and, before the edge of the woods, turn left towards Parmelan and reach a three-way junction at the Croix Pradier, at the edge of the woods.
(5) Keep left and climb up the rocks, where you may need to use your hands at times. Follow the yellow markings, which will guide you through the sharp limestone pavement.
(6) Ignore the path on the right and continue straight ahead to the Chalet Camille Dunant (1,825 m).
(7) Follow it on your right and reach the Tête du Parmelan (1,832 m) and enjoy a 360° view.
(8) Descend and rejoin the trail about 200 m to the left of the chalet. Continue to the left and reach the fork at Grand Montoir.
(9) Turn right and reach the fork at Petit Montoir.
(10) Turn left towards Chalet Chappuis, descend and arrive at a fork.
(11) Go straight ahead, along the mountainside below the cliffs, and continue straight on until you reach the top of a ridge (elevation 1,413 metres).
(12) Turn onto the track on the right and descend straight ahead until you reach the fork, at a clearing and the Chalet Chappuis sign, 10 min.
(13) Turn onto the path on the left towards La Blonniere, then continue along the track for 2 km to return to the La Blonnière car park (S/E).