From the car park, go past “Aussevieille-info”.
At the "Give way" sign, turn left and walk along the stone wall. Continue 200m and take the first street on the right “Chemin des sources”.
Continue on the asphalted road and cross the railway line. The road rises slightly.
100m after the railway line turn right and take the path lined with plane trees. This track is in fact the first route of the railway line between Tarbes and Bayonne before the Empress Eugénie asks for a passage through Lourdes.
At the crossroads of the D633, turn left on the road that goes up. After the right-angle bend, take an immediate right towards Poey-de-Lescar, via Chemin de la Serre.
At the next bend continue straight on the Chemin du Camp Romain.