We first walk to the Rosenhöhe and further over the outskirts of Darmstadt in the southern direction across forest, meadows, lunch on route, viewpoints and hills to Eberstadt. From there we take the bus and S-Bahn back to Frankfurt or the tram and bus back to Darmstadt Ostbahnhof to pick up the cars. Total distance about 12km with slight slopes (about 150m up and down). Meeting points:  Meet inside Frankfurt Hbf ( outside McDonald's ) at 9.10 to take 9.25…