La Cavale des Écureuils 2026

La Cavale des Écureuils is a trail race in Villers-en-Arthies, a village in Val-d'Oise in the Île-de-France region of France. It is an autumn event, with main race options around 10 km and 21 km, and some listings giving the full range as 5 to 22 km. The name means “The Squirrels’ Gallop,” and the race uses the phrase “a tree-to-tree race.” The route is within the Parc Naturel Régional du Vexin, a 71,000-hectare protected area north-west of Paris with marshes, forests, fields, and marked hiking paths. Runners choose this event for a nature-focused trail day instead of a city road race, and walkers participate as well. The race supports a charitable cause, uses CHRONO33 timing, and offers live GPS tracking via an app and fan zone.