(S) From La Borne au Lion, a magnificent spot steeped in history, follow the white path to the right towards the Col du Merle. The trail climbs gradually along a wide path.
(1) At the Col du Merle, continue straight on towards Les Closettes, down a slope leading to a pretty valley with views of the Reculet. Continue to the bottom of the valley.
(2) At Les Closettes, turn right onto the GR®, towards La Haute Cernaz, to reach the Valserine valley and Lélex. The route enters the forest on this section.
(3) At Haute Cernaz, take the forest track on the right, which narrows into a path and descends steeply to the Niaizet crossroads.
(4) Keep left, between the edge of the forest and the Valserine, for 3 km until you reach Lélex, where the dirt track gives way to the road and the first houses appear.
(5) Turn right at the Pont de la Fruitière onto the Route du Frênet. Continue to the Vieille Chapelle crossroads and the D991, turn left, then take the upper road to the next crossroads.
(6) Head up to the right along the small road which, 200 metres further on, turns into a dirt track (winter ski run). Follow this track for a few dozen metres before taking a narrower path on the left, which crosses the track further up, and continue the climb, which becomes steeper. Pass the Sous les Gindres junction, keep left on the GR®, and head for the Ratou crossroads.
(7) At Ratou, take the track to the left for 100 metres, then continue to the right along a path towards the Refuge de la Loge. The climb gradually levels out along a narrower forest path to the Refuge de la Loge, the end point of this first stage (E).