At Saint-Étienne-de-Baigorry, take the D948 towards Les Aldudes. After Les Aldudes, turn right onto the D58 Pamplona road. Pass Esnazu and continue to Col d'Urquiaga 910 m. Small car park on the left.
(S/E) Take the track heading East into the forest. Leave it very quickly, after about 100 m, for the well-marked path on the left, until you rejoin the track.
(1) Follow this track.
(2) Leave the GR® on the left, which climbs along the ridge. Continue along the track for 450 m.
(3) Leave the track and take a forest track on the left to reach the collet d'Adipeko Lepoa... (multidirectional post)
(4) To the left is the path we'll be taking back. Go straight ahead along the rough grassy path due south. Follow a fence along the ridge. A little further on, avoid some rocks by a hook and rejoin the fence and the ridge. The ridge bends South-East towards the end, and the slope becomes gentler until you reach the summit of Adi. Beautiful panorama.
(5)Descend due East. The path is well marked and joins the fence. Follow this grassy path northeast down the ridge to the Col d'Aratun 1209 m. Signpost .
(6) Take the marked path to the left, then a track which we follow westwards. We cross pastures and a well-marked path takes us back to the Adipeko Lepoa pass where we passed on the outward journey.
(4) Take the uphill path in the opposite direction to the car park (S/E).