If you want to ski down the mountain slope, you'll need to get to the top of it first. Hop on TCD6 Vieux Moulin and enjoy the ride.
You'll find this mountainside transportation system in Les Champs. If you're looking for things to do on a budget, you'll be pleased to hear it's free to visit. Once you've seen TCD6 Vieux Moulin, look up some attractions nearby. Vanoise National Park, Mont-Cenis and Val Cenis le Haut Gondola are a few recommendations.