Start from the car park at the Auberge de la Guienette.
(S/E) Head up along the cross-country ski trail, taking care not to stray onto it or cause any damage.
(1) Pass the signpost for Le Berbois and La Borne au Lion on the right. Continue straight on along the track, which climbs gently.
(2) Descend into the valley, keeping the cross-country ski trail on your right. Pass under the high-voltage power line and climb back up opposite, staying within the valley. Further on, pass the sign for Lélex on your left, and walk past a farmhouse-style building with a teepee nearby.
(3) Turn right to join the cross-country ski trail without descending into the next valley. Beautiful view of the Crêt de Chalam. Head up to the left along the trail to the Col du Merle. This is a steady climb; take care not to get in the way of skiers using the trail on their descent.
(4) Once at the pass, leave the track by heading up to the right: a fairly steep slope but not difficult. A narrow path in summer and a snowfield in winter. Reach the Crêt au Merle, situated on the border between the departments and the Jura. The 360° panorama is splendid: Crêt de Chalam, Crêt de la Neige, Reculet etc., as well as towards La Pesse.
(5) Descend by following the ridge north-west. Continue straight on until you reach the Col des Salettes. No difficulty; the view is very pleasant along this route, and the elevation gain is very slight. In the second section, you’ll find a trail marked with yellow posts.
(6) At the foot of the Col des Salettes, there is a signpost for hikers. Turn right and follow the path downhill. You will reach a ruin, situated halfway up the slope, with a large wall.
(7) Turn left in front of the house and continue straight on. The cross-country ski trail leading back to the Auberge de la Guienette is to the right below. Continue, staying roughly on the same contour line. When you reach the inn, head back down towards the road to reach the car park (S/E).