Roll out of Gan and follow the water: past the Le Néez and Le Soust rivers before the Le Gave de Pau comes into view. The route then threads by three castles in a row — Château de Pau, Hôtel de Gassion and Château de Franqueville. After the L'Ousse river, the Domaine du château de Coarraze marks the last stop before the road brings you back to Gan. All 76.1 km are paved, with 803 m of climbing along the way.