Access: At Oloron-Sainte-Marie, take the N134 towards Le Somport. Leave the junction for Etsaut Nord and continue until you reach the junction for Etsaut Sud on the left. Cross the bridge over the Gave d'Aspe and park in the car park to the right of the Pont de Cebers.
(S) From the car park, take the tarmac road (Etsdemorate) heading south-east along the Gave d'Aspe.
(1) At Passette, go straight on up the path. The Chemin de la Mâture starts here, as indicated by the signs and the white and red GR® markings. As you pass under a high-voltage power line, you will see the Fort du Portalet clinging to the cliff. You can take a short detour downhill to the right to reach a footbridge at the foot of the fort (which is closed until 2022).
(2) 400m further up, a right-angle bend to the left: entrance to the Gorges d'Enfer.
The climb is steady for 1500m. We are on the GR®10.
(3) Pass the Granges de Perry and continue on the path, which has become gentler, to the next junction.
(4) In the woods, turn left onto the path that climbs towards the Col d'Arras (follow the signs). 250m further up, turn left again towards the same pass. Leave the GR®10and follow a PR® (yellow markings). Cross the moorland following the paths carved out by the animals.
(5) The pass is indicated by a simple sign (does not correspond to the position on the IGN map). Start the descent, which is very steep and can be very wet and slippery.
(6) Continue straight down the winding descent on a path of often slippery stones, fording the Bouscagne stream and continuing down the winding path. Pass under the high-voltage power line and emerge onto a dirt and stone path (Arrie de Haut) that leads to a gate on the left.
(7) Return to the tarmac road, which bends to the left. Go down this road, again passing under the high-voltage power line several times until you reach (1) and continue along the tarmac road towards the Cebers car park (S/E).
: