Noz Caval'cade is a 15 km night trail race in Brest, beginning at the Complexe Sportif de la Cavale-Blanche. Participants require a headlamp. The event provides chip timing, a solo race covering the entire distance, and a two-person relay featuring a baton exchange at Fort du Questel.
The course runs along the Penfeld riverbanks and guides participants through the underground passages and moats of Fort du Questel, with an aid station offering solid and liquid provisions located inside the fort. The finish line includes an XXL aid station. The day also features children's races, named la course de Yetis (parental consent needed), along with event volunteers and a podium ceremony.