Thermal Baths in Monetier Les Bains, Serre Chevallier
A fantastic way to spend the day. Ski the day at Serre Chevallier then end it at the baths, situated at the bottom of the pistes. They are really really special, you need at least 2-3 hrs there to try everything, spas, saunas, hammam, dimly lit caves filled with warm water and relaxation music! Well worth a visit.
Plateau D’Emparis and Le Lac Noir, La Grave
The big flat mountain behind Alpe D’Huez, tour on mountain bikes or walks. Absolutely spectacular, particularly in the autumn, something to definitely add to the to do list. A local company does tours with electric mountain bikes in the summer too, so huge amounts of fitness not necessary.