From Bourdettes, after an old mill, turn left at a small bridge on a canal, in direction of Pau and Saint-Abit. Enter the village of Arros-de-Nay and turn right on to the street Rue de la Roundade. At the first stop sign, keep straight. At the second stop sign, in Pardies-Piétat, turn right then left towards Baliros. At the next crossroads, turn right then left. Go into Baliros, go alongside the church and keep straight. At the end, turn left then right. Provisional end of the route in Baliros, at the crossroads with the road D37.