For families, Les Portes du Mont-Blanc, proposes a 10% reduction when you buy at least 4 passes at the same time or more (except season) included minimum 2 children under 18 years old.
Day cares and the French ski school also offer good benefits for families.
Les Portes du Mont-Blanc area really wants to do the best for families. The resort has the "Famille Plus" label.