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Start from the station at L'Hospitalet-près-l'Andorre.
(S/E) Follow the GRT68 towards the bottom of the village, cross over the EDF penstock, turn right running parallel to the RN towards the hikers’ car park. ‘IGN map route incorrect at this point’.
Pass under this busy road. The path, made of boulders for about 100 m, was created to avoid crossing the RN. Join the old path.
(1) Continue to the right on the GRT68, which climbs straight into the woods. Reach the small stone bridge over the Ruisseau du Siscar.
(2) Turn left and follow the GRT towards the Étang du Siscar. You will reach a fork at an elevation of 1962 metres.
(3) Turn right, leaving the GRT, and follow the signposted path towards the Étang du Siscar. Reach the lake and continue along the bank.
(4) Turn your back on the lake and head straight up to join the path leading to the Porteilla du Sisca at an altitude of 2440 metres. Turn left and head towards the Porteilla.
(5) Follow the path branching off to the right.
Two options:
- follow the ridge to the summit.
- follow the path on the north-facing slope and leave it when you reach the pre-summit plateau (choice of route). There are some faint tracks, but the low vegetation makes it easy to find your way straight to the Pic de Nérassol.
(6) 360° view. Return to La Porteilla du Sisca via the same route.
(5) Descend to the right down the north-eastern slope and head towards the Étang de Pédourrés. Cross the Ruisseau de Val d'Arques and you will immediately reach a fork at the 2165m mark.
(7) Join the GRT68 on the right, heading south-east. Pass the Jasse de Brougnic, then the small lake and its dam that follow, and continue along the path without interruption until you reach the bridge over the Ruisseau du Siscar.
(2) Turn left, heading in the opposite direction to the climb towards L’Hospitalet-près-l’Andorre.
(1) Turn left, go under the A68 to return to the station (S/E).
Visorando Member
Very difficult 
Moderate 
Easy 
