This circuit is inspired by the route of the Marathon du Vignoble d'Alsace, which takes place every year in June. It takes in roads, cycle paths and footpaths. Unlike the day of the Marathon, it is not secured. Some passages can be dangerous. Originally 42 km long, it has been extended by 3 km to make a circuit. Of course, the gourmet stages and refreshment points are not on site as they are on marathon day!