By car: from Bayonne, take the D918 towards Saint-Jean-Pied-de-Port. When you reach Bidarray, turn right to cross the bridge over the Nive and turn immediately left to go up to the village centre. Park in the large car park by the pelota court.
(S/E) Leaving your car, continue on the same road towards the west and after 100 metres turn left (south) onto theGR®10. Follow the very clear markings. Pass a few houses then climb up into the forest to the Col de Pagalepoa.
(1) About 300 metres after the Col Pagalepoa, leave theGR®10which climbs opposite and turn right onto the path that runs along the hillside and leads to the ruined barns (a nice place for a break).
Then turn left and take the path that climbs due south.
(2) Pass the BK42 marker and continue to the ridges to rejoin theGR®10.
(3) Take it on the right. About 200 metres further on is the only water source on the route. Be careful to refresh yourself but do not drink!
Continue along the ridges, pass the Col d'Iparla and arrive at the summit marked by a large marker. The view is breathtaking!
(4) To return, follow the same path in reverse and head back to the car park (S/E).