Route N°20 - D'Oloron à Haux, par le col de la Serre

About ten kilometres along the Gave d'Aspe, some time to warm up from one village to another, before this circuit begins to jump between the Béarn and the Soule. Nothing less than 75 km to successively visit the towns of Issor, Arette, Lanne-en-Barétous, Montory, Barcus and even Esquiule, a great circuit that starts from Oloron Santa-Marie. There are not very long cols, but there is a nice chain of hills and mounds to change from a green valley to a hidden one and to access the villages by their most secret routes. Thus, the rural roads of Montory reserve some pleasant surprises. We can bet we will stop whistling when it comes to climbing the short but invigorating Col de la Serre, which also has exceptional views. On the way back, the slopes of Lassalle and Esquiule also offer a beautiful panorama.