This 24 km bike ride takes you from La Serva to the heights of the village of Le Hohwald. You'll pass by the Champ du Feu tower, inaugurated by the Club Vosgien in 1898 and marking the highest point in the Bas-Rhin at 1099 m altitude. Your route takes you around the Chaume des Veaux, a beautiful high-altitude meadow, past the Andlau (waterfall a little further down), before reaching the Rothlach crossroads and returning to your starting point.