Be sure to have enough gas in the tank, because Grenoble is worth making a detour for. Located 18 miles from Le Bourg-d’Oisans, it boasts some fantastic attractions, such as Museum of Grenoble and Fort de la Bastille. Chambery, 35 miles away, is another road-trip destination that’s worth the journey. Swing by Chateau de Chambery and Carre Curial, two top-notch sights in the area.