Park in the car park in the centre of the village of Ainhoa.
(S/E) Head downhill towards the wayside shrine. At the cross, leave the one-way road and the access to the hotel on your left. Follow the red and white markings ofthe GR®10to the right, heading up the road. The road continues, flanked by high, wooded embankments. Once you have passed the first houses, at the crossroads, continue to the right; the oratory is signposted at the foot of a water source adorned with a red shutter. Follow the Way of the Cross to reach thefourth cross.
(1) Take the path on the right and, further up, cross a pasture to reach the Chapelle de l’Aubépine with its crosses. Continue on to a crossroads with several directions.
(2) Take the path on the left, which runs parallel to theGR®10, and continue the climb to reach Mont Errebi.
(3) Begin a short descent across the plateau, then follow a gentle climb to reach the Col des Trois Croix.
(4) Walk past some hunting hides for wood pigeons and easily reach Mont Soporro.
(5) Descend to theGR®10junction near the Gainekoborda barn.
(6) Take the path running parallel to the track and arrive at another junction with several directions.
(7) Leave the track and turn left onto the steep path to reach the summit of Pic d’Ourrezti.
(8) Take the ridge path to the left to reach the summit of Pic du Mondarrain.
(9) Retrace your steps along the previous route until you reach the junction at the Gainekoborda barn.
(6) Take theGR®10on the left and follow thisGR® route to the Col des Trois Croix.
(4) Leave theGR® here and turn left. Continue downhill until you reach the junction with the path leading to the Erramuntenborda barn.
(10) Ignore this path; take the one on the right, continue downhill and rejoin theGR®10at the junction you passed on the way out.
(2) Follow the route you took on the way there in the opposite direction to return to the Ainhoa car park (S/E).