Park in the car park at the Venta du Col d'Ispeguy.
(S/E) Set off to the left of the venta, heading south into the forest, on the steeply sloping path. At the edge of the forest, follow the winding path that undulates along the rocky ridge and leads to a grassy plateau. Continue south on this plateau and re-enter a beech forest. Follow the well-marked path south, lined with old pidgeon hunting huts, before climbing up a stony path. Exit the forest and reach a rocky pass.
(1) Turn south and follow the border ridge to reach the Nekaitzeko Lepoa Pass and border marker 98.
(2) Continue along the southern path on the border, passing boundary markers 99 and 100. At boundary marker 101, turn right towards the west to reach boundary marker 102 at the Col d'Elhorrieta.
(3) Descend to the left onto the track. Cross a stream and shortly afterwards you will reach a trail junction.
(4) Take the left path up a grassy slope. Turn almost 180° to the right to stay almost on the hillside for a few hundred metres. You will reach the foot of a rocky ridge.
(5) Climb up to the left, turning almost 180°, and follow this small rocky ridge. Cross it at its northern end through a small corridor. Continue along the grassy plateau and then through a rocky corridor. Then turn right to reach the summit of Elhorriko Kaskoa.
(6) Descend north-east to the pass below. Be careful here, between Elhorriko Kaskoa and Urrizpilota, the ridge is very steep. Pass to the west and proceed with caution. Continue climbing north-east towards a rocky peak, going around it to the west. You will then reach a tarmac track at the Urrizpilotako Lepoa pass. Leave it immediately on the left and climb to the summit of Urrizpilota.
(7) Leave the tarmac road on the right and follow the wide path that enters a beech forest. Follow this path to the Nekaitzeko Lepoa Pass, which you passed on the way up.
(2) Take the path on the right, heading east, and descend into the forest. Stay on this path, which is steep in places, to reach the car park at the Venta du Col d'Ispeguy (S/E).