From Paris, Lyon, Turin, or Nice, take the Maurienne A43 motorway. Take the Ouix Montgenevre De exit. From Grenoble, Lyons, or Paris, take the A51 and take the Pont de Claix exit
Follow signs to Bourg d'Oisans, towards La Grave, Col du Lautaret, towards Saint Chaffrey
From Marseille, take the A51 and take the “La Saulce” RN94 exit towards Saint Chaffrey.