Guidebook with maps/step-by-step
From the Maison du Lac, follow the greenway along the eastern shore of Lac d'Aiguebelette. Cross Aiguebelette-le-Lac and climb towards Attignat-Oncin, towards the foothills of the Chartreuse massif. At Attignat-Oncin, head back down towards the lake in the direction of Lépin-le-Lac. Follow the D921d to the Gué des Planches crossroads, where you take the road climbing towards Dullin. Follow the heights of the lake's western shore to Novalaise. In the village of Novalaise, turn off towards the Col de la Crusille, then join Gerbaix and Marcieux. At the top of the côte de Marcieux, just let yourself roll all the way to the finish.