Located on the Crest road at 1260 meters high, the Markstein is a four-season mountain resort, which hosted the World Cup races in Alpine skiing in the 80s. They practice all winter sports (downhill skiing and cross country skiing, snowboarding, snow-kiting, snowshoeing, sledging ...). During summer, nature lovers are satisfied : walking and hiking with departures of many trails, recreational and leisure activities ... It is also a paradise for paragliding pilots and hang-gliders departing from Treh.