Leave the city behind and explore the surroundings of the Chailluz forest, at the foot of the Fort de la Dame Blanche. The route continues towards Marchaux and its legendary hill climb. There's a fine descent to Amagney and the Doubs Valley, with its pastoral landscapes and breathtaking views of the surrounding peaks. On the way back, there is a nice alternative route through the village of Vaire-Arcier and its springs. Most of the return journey is by bike.