The Trail des Castors is a local trail-running event in Beure, organized by the Castors Juniors association. Its main races are 21 km and 10 km trails with significant climbing, and the same day also includes a walk plus races for children, making it suitable for families and local runners as well as fast trail specialists.
The most challenging section begins shortly after leaving Beure, where the 21 km route quickly introduces elevation gain and stairs. Approximately 400 runners participate in the two trail races, with close to 30 finishers completing the 21 km course in under two hours. The routes are marked with red or blue tape and temporary orange or blue paint, then cleared within 24 hours after participants have passed.