Plage des Vignes is a great place to get away from the hustle and bustle of everyday life. See if any water activities are available here, or just soak up the serene ambiance.
You'll find this body of water in Sinard. Once you've seen everything you want to at Plage des Vignes, have a look at nearby Col de Marcieu, Tour du Mont Aiguille, and Atelier Gilioli.