From Lannepax you roll out along the Auzoue and Osse rivers before the Baïse joins the story. Three castles follow in turn — Herrebouc, Castelmore and Espas — each one a castle to tick off as the kilometres pass. Then it's the Gélise river and the road back to Lannepax, with 87.3 km of paved riding and 838 m of climbing in the legs.
