Park in the small car park at the end of the road after the hamlet of Roya.
(S/E) Take the track, which quickly becomes a path, overlooking the stream.
(1) Ignore the path on the left leading to Col de Crous and continue straight ahead to stay on the left bank.
(2) Continue in the same direction, ignoring a path that climbs to the right. Head towards Trou des Corneilles.
(3) Cross the bridge over the river, then follow it for a while to enter the heart of the Mercantour Park. Reach Trou des Corneilles, a natural bridge overlooking the valley.
(4) Continue to follow the stream on the right bank and reach a footbridge.
(5) Cross the main stream and then, immediately to the right, a second torrent. From there, the path is less obvious, so you need to follow the yellow markings, which are sometimes difficult to see from a distance.
(6) Cross another stream, pass between some ruined buildings (yellow markings), then climb towards the cross (2,030 m), carefully following the markings.
(7) From the cross, the path is clearer. Stay on the spur to continue the ascent (yellow markings). Take a track to the Col de Chavalet.
(8) Be sure to take the path on the left, which runs almost horizontally towards the west: do not take the tracks to the Auron resort. Follow the yellow markings to progress towards the summit. Just below the summit, the slopes are steeper and you may need to use your hands to reach it.
(9) Enjoy the view and retrace your steps to return to the car park (S/E).