The Dahu Race is a winter obstacle race held at Aillons-Margériaz 1400, within the Nordic area of the Aillon-le-Jeune resort. Two course options are available: a 6 km route and a 3 km route designed for families. Both courses feature obstacles, though none are mandatory. Participants are welcome to run, walk, or bypass any obstacle they prefer.
The event is designed for mixed groups, not exclusively for trained athletes. Friends, families, beginners, and those returning to sports can participate at their own pace. The day begins with a musical warm-up, and costumes are encouraged, adding to the festive atmosphere before participants begin the course.