The La Val de Marnaise is a 9.2 km discovery trail in Créteil, Val-de-Marne, near Paris. Held in mid-November starting from the Parc des sports de Créteil-Choisy-le-Roi, it combines road and natural terrain, allowing participants to run solo or in pairs.
The course is described as a mix of urban and natural environments, featuring forest sections within its short trail format. The Comité Départemental d’Athlétisme du Val-de-Marne organizes the event, which begins at 2:00 PM. Check-in at the secretariat is required one hour prior. Athletes and coaches receive a bracelet for access to the warm-up and competition area shortly before the race. The event's local slogan, “Sacred Race, Sacred’teil!”, is a play on Créteil, emphasizing its strong Val-de-Marne identity.