In Winter, France’s Tignes ski resort, shares of one of the biggest ski terrain in the World. Val d’Isère and Tignes are part of a space called l’Espace Killy named after local ski legend Jean-Claude Killy.
Tignes also boast one of the Alps largest summer ski terrain, 12 lifts generally servicing 20km of piste on 450 meters vertical on the Grande Motte glacier. The summer skiing and glacier is connected via one of the longest funiculaire in the World connecting the resort at 2100 meters at the base with the high altitude station and restaurant at 3000m. From that point, an aerial Tram reached the top of the resort at close to 3500m. Tignes used to boast skiing 365 days a year, now in closes a few days in September.
Located at the Tarantaise region in the Savoie department, Tignes is one of only two ski areas left in France that offer skiing all summer long. The other is Les Deux Alpes in l’Isère department not far from Grenoble.
Here is a brochure on Summer lift passes information from summer 2011: