Cycling on former railroad lines is a delightful way to explore the low mountain range landscapes on two wheels - the leisurely way, of course. The Ruhr-Sieg-Radweg, which connects the two major watercourses Ruhr and Sieg on 113 kilometers of low-gradient route, largely follows former railroad routes.
In addition to scenic sights such as the Biggesee, numerous attractive places and buildings along the way are worth a stopover.