At the entrance to Ainhoa, follow the sign for the car park along a small road on the left after the pelota court.
(S/E) Turn left until you reach the three-way junction and continue on the left-hand road (Mendiondoko-Bidea) until the first crossroads.
Turn right and continue to the next junction, which leads to Tanburinborda.
(1) Take the road on the right. After the hamlet of Tanburinborda, the road becomes a track. Pass the junctions on the left and right and follow the main track. You will come to a Y-shaped crossroads.
(2) Leave the track that branches off to the left and take the track that climbs to the right until you reach a spring.
(3) Turn completely right, southwest then south, and reach theGR®10crossroads.
(4) Take it to the left until you reach a fork where there is a spring.
(5) Continue right on theGR® 10 to reach the Col des Trois Croix, an important crossroads.
(6) Take the grassy path on the right, turning almost 180°. Climb up to reach the summit of Errebi.
(7) Follow the grassy ridge. This curves westwards, becomes stony and, after a fairly difficult descent, joins theGR® 10. Take this trail to the left and head for the calvary and chapel.
(8) Follow the processional path to the car park at the start in Ainhoa (S/E).