Start from the Col de Plan Bois, at the inn car park.
(S/E) To start, take the road on the left (as you look at it from the inn). Follow it for a good kilometre. When you enter the forest, on your left, in spring, you may see lady's slipper orchids. Continue down the road and, at the end of the forest, pass the Frasse chapel and continue to the next intersection.
(1) Take the small road on the left that follows the contour line. You are now on the Sulens tour. Continue along this wide road for a good while until you reach a three-way junction, turn left to go uphill, then left again at the edge of the forest and stay in the forest.
(2) At the end of the forest, turn right onto the path that climbs a little more steeply, winding through the pasture. Follow the edge of the forest and finally, after a bend, re-enter the forest. Continue straight ahead until you reach the farm school.
(3) Turn right and continue, keeping to the left at the next cottages, until you reach the ridge of Montagne de Sulens.
(4) Turn right and you will quickly reach the first summit (elevation 1,776 metres).
(5) Return to the previous fork.
(4) Continue straight ahead and follow the ridge to an orientation table at the summit of Sulens Mountain.
(6) Continue along the ridge to the cross a little further on.
(7) Descend by retracing your steps to the farm school.
(3) Turn right and follow the track. Pass the Greffaz mountain farm and continue downhill until you reach the Col de Plan Bois (S/E).
