La Mad’Oz, a brand-new red enduro trail linking the Col de Poutran at the start of the Games area on L’Alpe d’Huez to the resort of Oz: 4.5 km of pure pleasure in a mineral and wooded environment close to the Roubier torrent. This enduro trail is ideal for intermediate to expert mountain bikers, and is over 4.5 km long. Starts from the Col de Poutran. The route runs alongside the Roubier stream, with sections on slabs, through woods and alongside the lake above the Oz resort. This hitherto unexplored environment will make this route one of the future “jewels” of the resort. A must-see!