Trail des Nouettes is a forest trail event in Versailles. The château and its estate are nearby, but the races take place on wooded paths. It is held in autumn and provides five choices: an 18 km trail with 350 m of elevation gain, a 10 km trail with 160 m of elevation gain, two Nordic walks, and a timed 3 km race for younger participants.
The start and finish are at the Centre Sportif Jean-Marc Fresnel on rue Rémont. The 18 km race follows a single loop, while the 10 km race and both Nordic walks consist of two loops. The 13 km Nordic walk is timed, and the 10 km walk is a leisure option. Union Athlétique de Versailles organizes the event. The participants are intended to be trained trail runners, walkers, and young athletes, not exclusively competitive racers.