Reach the Boenlesgrab farmhouse inn at the pass of the same name.
(S) Take the white path that climbs up and runs alongside the farm buildings. Continue until you reach the Strohberg farmhouse inn (1). Just after passing this farm, take the small path that climbs up to the left, which will allow you to cut across the bend in the main road. Return to the main white road, continuing uphill, then after 400 m turn left towards Petit Ballon (2). This is a small path that climbs into the forest before opening up and reaching the summit (3).
Descend towards the house below and continue along the path that continues through the forest. Continue in the same direction, slightly to the left at the fork, and go through the fence. Go to the top of the Steinmauer (4) and retrace your steps before going back up the small path through the bushes.
Pass under the Petit Ballon in the pasture and re-enter the forest, then descend to the car park of the Boenlesgrab farmhouse inn.