The car park at the start of the walk is located at the bottom of the Échelette hill, on the D259 between Saint-Privat and Lussas, just before the first hairpin bend. Park carefully as there are few spaces and it is often busy.
(S/E) Cross the road and take the path that descends opposite the car park.
(1) Cross the Louyre stream over the dam and take the path on the right.
Ford the stream three times and you will arrive at a slightly elevated clearing opposite the Font Merle stream. Continue straight ahead, leaving a track on your left, and you will arrive back at the stream.
Turn right and walk up the Louyre stream, following the left bank. When you reach a small tributary, do not cross it, but take a track on the right that leads to the entrance to the Baume de Chabannes cave. Do not go too far into this cave to avoid disturbing the bats.
(2) Leave the cave and follow the right bank of the tributary stream. At the first junction, turn right.
Pass under a ruin and you will reach an area of flat rocks at the water's edge.
On the opposite right bank, you will see an area of green vegetation. This is the location of a spring that feeds the lower part of the Louyre Stream. In the upper part, there is generally very little water.
Further along the route, there is no real path, but you can walk most of the way on flat rocks, on the right or left bank, or at the bottom of the stream bed.
(3) One or two passages may seem difficult to cross, notably a "gour" (water hole) surrounded by overhanging rocks. In this case, you will need to backtrack a little and look for a steep track climbing up the left bank. At a fork, leave the path on the right that continues to climb and arrives on the plateau. Take the almost horizontal path on the left that rejoins the valley after the difficult section.
(4) Cross a path with white-yellow markings leading to Sévenier (possible shortcut). Continue along the stream bed.
When you reach the confluence of the Ruisseau de Louyre and the Ruisseau de l'Eyrolle, continue straight ahead to the Évent des Grenouillettes, a water hole surrounded by cliffs.
(5) Turn back to the confluence and take a path on the left bank that climbs towards the plateau.
Ignore a path on the left and join the white-and-yellow marked trail that you crossed at the bottom of the valley.
(6) Climb left on this path and join a road in the hamlet of Sévenier. When the road turns left, continue straight ahead on a path, following the markings. You will rejoin the road at the bottom of this path
(7) Leave the marked trail and take the road on the right. At the first crossroads, opposite a cross, turn right. Continue along this dirt road, ignoring the paths on the right and left. Pass in front of the climbing site car park.
(8) After a bend in the path, look for a trail on the right marked with a sign saying "Accès falaise" (cliff access). A return trip on this trail gives access to a viewpoint over the gorges. Then return to the path.
(9) Still following the white-yellow markings, leave the path and take a slightly uphill trail on the left.
(10) At the hiking information post, under the high-voltage line, turn right towards Lavilledieu. Continue to the next hiking information post. On the way, you can see the ruins of the Jastres Nord oppidum on a hill on the right.
(11) Turn right towards Saint-Privat. After a bend, don't worry about an old white-and-yellow signpost. Continue to the next crossroads.
Turn left, arrive at a wider path and turn right. Continue downhill to the D259.
Cross this road with caution and continue below on the old Échelette road.
Rejoin the D259. From there, there is no other option but to descend this road to return to the car park (S/E).
