The Trail des Iraiductibles morning in Clères begins with a free race for children aged 6 to 12, preceding the adult events. The main program features an FFA trail event offering two distances: 18 km with 400 meters of elevation gain, and 10 km with 250 meters of elevation gain. An 8 km walk runs concurrently with the races, ensuring the day caters to runners, walkers, and families, not exclusively competitive trail specialists.
The course starts and finishes near the Clères Zoological and Botanical Park. One past edition utilized a grassy field facing the park, where the terrain created a cross-country feel for the opening and closing sections. The event attracts a strong local field, with over 1,100 registered participants and more than 900 trail finishers documented. Walkers receive a country-style buffet along the route, all participants are offered refreshments at the finish, and parents can utilize a free supervised daycare following the children’s race. Les Iraiductibles organize the event, and local race coverage with photo galleries contribute to its perception as a community tradition as much as a timed trail race.