From Issor, opposite the town hall, head south along Rue Lacarriou, cross the Gave de Lourdios, turn right onto Route Bèziat and then right again onto Chemin Boucoigt, heading south until you reach a fork before Labarrère.
There is no car park. Find a space along the road. Please park correctly so as not to obstruct traffic for farmers and residents.
(S/E) Drive up the road to the cattle grid.
(1) Continue straight ahead until you reach an intersection at Col de Boucoig, where there are two barns, one on each side of the road.
(2) Take the path that climbs up to the left. Admire the view of the Soutourou and climb up to a small plateau with a large crossroads.
(3) Turn onto the path furthest to your left. Pass a large rock marked in yellow (keep it on your right) and climb towards Mont de la Serre.
(4) At the fork, the path splits in two. Do not take the track opposite. Climb left, south, on the small path towards the mountain. Enjoy the view over Mustayou.
(5) At the intersection, turn left and continue to follow the main path.
(6) There is a hairpin bend. Continue to the right. The path then turns into a trail. It zigzags and the slope is steep. Join the road and a cattle grid.
(7) Turn left onto the road and rejoin the first cattle grid you crossed.
(1) Turn right and cross it again, then retrace your steps back to your vehicle (S/E).