If you want to ski down the mountain, you'll need to make your way to the top of it first. Hop on Petites Cretes Ski Lift and enjoy the ride up.
To visit this mountainside transportation system, head to Les Deux Alpes. There are loads of other things to see in this area, like Venosc Gondola, Ice-Cave Les 2-Alpes, and Plateau d'Emparis.