Cycle through Hessen: a contemplative journey through the river valleys of the Lahn, Ohm, Anteff, Schwalm, Lauter, Lüder, Fulda and Sinn. Don't forget Alsfeld with its timber-framed backdrop and Fulda cathedral. It's also well worth taking a detour to Marburg with its remarkable old town and landgrave castle. The route is mainly downhill from the River Lahn to the Vogelsberg, but you'll then face some more difficult climbs on the way to the Spessart. The Spessart itself is fairly challenging with several larger climbs.
