Make sure you have plenty of gas in the tank, because Grenoble is well worth a detour. Located 50 miles from Saint-Peray, it boasts some terrific attractions, such as Museum of Grenoble and Fort de la Bastille. Lyon, 55 miles away, is another road-trip destination that’s worth the trek. Swing by Bellecour Square and Hôtel de Ville de Lyon, two must-see attractions in the area.