The route starts on the outskirts of Xonrupt-Longemer, after the bend, at a place called Les Charbonnières (elevation 748).
(S/E) Head uphill along the marked path (Blue Circles), crossing a first forest track. Continue uphill to elevation 903 on a second forest track.
(1) Turn left (Blue Cross), then turn right onto the Chemin Stratégique forest track (Red Triangles) as far as the Loge de la Cloche (elevation 949). Continue on to the Auberge de Balveurche.
(2) The return journey follows the signposted path (Blue Triangles), which you take on the left just before reaching the inn. Follow this forest track (Chemin de Balveurche) to the Carrefour Irénée Duvoid (elevation 919).
(3) Turn left onto the Chemin de la Casuette and follow it to the Belbriette stream (Red Crosses).
(4) Follow the stream downhill towards Les Charbonnières to return to the starting point at Xonrupt-Longemer (S/E).