If you come by car:

Motorway and then mountain road.
Several underground car parks will be available in Tignes.

If you come by train:

From the terminus Bourg-Saint-Maurice, the railway station the nearest to Tignes, a shuttle service will allow you to reach Tignes Le Lac, at about 150 metres of the studio or you can catch a taxi.

If you come by plane:

The nearest airports to Tignes are,
-Chambéry-Aix
-Grenoble
-Lyon St-Exupéry
-Genève.