From Hasparren, follow signs for Saint-Palais and Saint-Jean-Pied-de-Port (D22). At Bonloc, leave the road to Saint-Palais on your left and continue straight on towards Mendionde then Hélette (D22) for about 8 km. At the roundabout before Hélette, turn right towards the Baigura leisure centre (D119). Park 2.5 km further on, in the car park on the left-hand side of the road opposite the Baigura leisure centre.
(S/E) From the car park opposite the leisure centre (300 m), follow the path that starts next to a house (start sign). Go through a chicane and climb up to the crossroads in the ferns between the copses.
(1) Turn left onto the path that climbs between the ferns. Then cross the Baigura road and continue straight ahead. When the path comes to a fence, it continues to the right on a steeper slope through the gorse. Keep following the path uphill to a grassy plateau with a sheepfold and panoramic views.
(2) Climb straight up through the grass above the sheepfold (470 m); ignore the intersection with the discovery trail and continue climbing straight ahead towards the beech forest. After crossing another path, the trail crosses to the right, still steep, towards a rocky ridge. It makes two hairpin bends under the trees and then winds between the boulders. As you pass through a small gap (740 m), you will see the summit of Baigura and the final climb.
(3) The trail now descends in a straight line up the western flank of the mountain. Pass above a bend in the road. At the last bend, climb up the grass on the left.
(4) Follow the ridge to the right. Pass by the orientation table and the cromlechs. 50 m further on, pass to the right of the fenced transmitters, then follow the road and path to the last antennas. Climb a few metres to the left to reach the summit of Baigura.
(5) From Baigura (897 m), return along the ridge to the orientation table.
(4) Continue towards the summit of Erregelu, approaching it from the left.
(6) After a break, leave Erregelu (865 m) via the long eastern ridge. Initially steep but easy, the path then continues along the fairly flat Kurutze ridge (view to Soule). It then turns right onto the southern slope for a long descent to a grassy plateau. Once on the grassy plateau, keep to the right-hand path until you reach a bend.
(7) Turn left and follow a new path along the mountainside. You will reach a pass (604 m) with a ruin, an orientation table and tables.
(8) Pass to the left above the ruins where the path descends into the grass. Then turn left twice to walk along the discovery trail, which runs along the hillside and features themed information panels. Just after crossing a stream (info "springs and streams"), take the left-hand path at the fork.
(9) The path passes through a remarkable wood and then descends gently towards lawns. Keep the obvious path in front of you, which rejoins an intersection overlooking the Buztingorri sheepfold.
(10) From the intersection (501 m), descend to the right through the grass to pass near the sheepfold (paragliding school site) and rejoin the path taken on the way there.
(2) Return to the starting point by retracing your steps (S/E).
