-On the way to the desert via the very small roads of the Basque Country, we take the forgotten routes to pass the Pyrenees and arrive in the medieval village of Sos del Rey Catholico. The next day, it's the crossing of Bardenas on the Camino autorizado! We go around it then go back to the medieval village of Olite! The return takes place via roads which take us due west through the greenery of the Basque country until we return to the border.