Start of the hike: Auberge du Boenlesgrab. Car park in front of the inn at the end of Route du Boenlesgrab, accessed via Lautenbach.
(S/E) Take the path to the left of the inn towards the Strohberg farmhouse inn and the Petit Ballon (Red Disc markings). Turn left at the junction and continue to a farmhouse inn.
(1) After the farmhouse, take the path climbing up to the left towards Kahler Wasen and Petit Ballon. When you rejoin the wide path, continue towards the Col du Petit Ballon (connecting path marked with a Red Saltire). Keep going until you reach the Col du Petit Ballon.
(2) Turn left (south, marked with a Yellow Ring) to the Amis de la Nature refuge.
(3) Turn left and immediately head up to the right onto the ridges, following the Yellow Rectangle markings. (An alternative route is available to reach the summit of the Petit Ballon and enjoy an exceptional view (see practical information).)
After a short stretch through woodland, cross the scree and arrive at the Schelimatt refuge (Dynamo).
(4) Continue on theGR® 532, Yellow Rectangle, along a path and then a wider, relatively steep track (downhill) to the car park (S/E).