The Grande randonnee GR5 is a long distance footpath 2500km. You can do sections of it from Maison Caramel on your way to the Parc National de la Vanoise or le Beaufortain.

Lac de La Plagne, Lac de l'etroit, Fort de La platte and the 5 Lakes...

Or you can head for the Parc de Nancroix where you can do discovery walks of a couple of hours if you prefer shorter trails or you have young children.