Head towards Biriatou and park in the car park below the town hall.
(S/E) Take the stairs and cross in front of the church. Follow the road to the left and continue to the edge of the village.
(1) Turn right at the first intersection. At the fork that appears shortly afterwards, take the road that climbs to the right.
(2) Leave the road and take a path on the right, following the GR®10.
(3) Turn left before an electricity pylon and immediately ignore a path on the right (do not go under the high-voltage line).
(4) At the fork, take the path on the right which winds its way flatly to the hamlet of Larretxeko Borda.
(5) Turn right onto Chemin du Calvaire. At the fork that appears immediately, take the path on the right. Further on, turn left, rejoin the other path and climb up to the calvary (chapel).
(6) Descend southwards, pass under the high-voltage power line and reach Col Prairie.
(7) Continue straight ahead on a path that soon turns west and climbs slightly up the hillside. Directly below the high-voltage power line, turn left. Descend and pass under the high-voltage power line again.
(3) Return along the same path you took on the way up to the car park (S/E).