Nature walk, Armor Argoat bonus challenge. Saturday: Noz trail off, departure at 19:45 for the 12 kms and at 20h for the 5 kms (compulsory lamp). Sunday: nature hike race, departure from 7.45am to 11am for 6.5 and 12km and from 7.45am to 10am for 17, 21 and 27km. Registration: 4/5 € on site or online. Part of the benefit will be donated to an association for disability.