Park in the large car park at Tiocan (if full, park along the forest road).
Signposting: there are signposts at major crossroads; there are old markings (yellow paint) along the route, as well as low posts belonging to the Jura Nature Park along the paths in the meadows.
(S/E) From Tiocan, first follow the forest road (tarmac) northwards, then after 200m turn left onto the forest track (barrier for cars). At the first bend in the road, take a small sunken path on the right (start not very visible) which climbs steadily. At a fork, continue left until you reach a small plateau with a crossroads.
Continue left on the clearly visible path until you reach a junction with a track suitable for vehicles. Cross it and take a partially concreted track suitable for 4x4s. After a final steep climb through the forest, you will arrive at La Croisée (signposted).
(2) Turn left towards Narderant on a path that goes around a rocky outcrop before arriving at a wide valley. Close the gate at the entrance to the valley (livestock from June to September).
(3) Shortly before the Narderant chalet, at the fork, turn right and climb up the valley, staying on the right-hand side at first. Stay on the path, which winds through the middle of the valley (there are a few low posts lining the path), passing a few goyas (water holes) before arriving at the edge of a large basin at the bottom of the valley.
(4) Turn right to climb towards a cliff. Then follow it north-west to the end. There is a passage with steps. At the exit, head towards the metal cross that marks the Reculet, crossing an alpine pasture (a few low posts line the path).
(5) To return, descend a few metres from the cross, then take the path that crosses the mountain pasture on the left-hand side. Sometimes you will need to use your hands to get over small rocky outcrops. You will see two large water tanks in the line of sight. Shortly afterwards, you will come to the 4x4 track that leads to the Chalet de Thoiry in front and the Chalet Curson.
(6) Turn right, and the track quickly becomes a steep descent to La Croisée.
(2) Descend via the same route you took on the way up to the first crossroads you passed on the way up.
(1) Turn left onto a wide path that descends more gently than the path you took on the way up. This path leads to the forest road at the En Beule farm. Turn right and continue to the starting point.