Park in Sevan, at the end of a small road that winds steeply uphill from La-Chapelle-d'Abondance (follow the sign for "Lac d'Arvouin").
Directional signs at major intersections
(S/E) In Sevan, head west and take a path towards Lac d'Arvouin. Go around a chalet on the right and climb gently through the pastures. You will come to the Chalets de Sevan behind you.
(1) Continue a few metres west, then turn right and head north on an alpine track that enters the forest. After a few hundred metres, leave the forest and pass the foot of a chapel nestled in the rock. Continue roughly along the hillside until you reach Lac d'Arvouin.
(2) Continue north and follow the lake on your left. At the end of the lake, continue uphill on the track to the Chalets d'Arvouin.
(3) Then turn right (north-east). Pass at the foot of a scree slope and, at the fork that immediately appears, take the left-hand path (the narrower one). Climb up the mountain pasture, following a few hairpin bends. Join the ridge at the Col d'Arvouin.
(4) Follow the ridge to the left (north-west), through the spruce trees. When you reach open ground, climb up a steep grassy ridge.
(5) At the top, turn left, take a few easy scrambling steps among the boulders and reach the summit.
(6) The descent follows the same route as the ascent to Sevan ahead (S/E).