Deutsche Bundesbahn in the 1970s: the era in which the railbus was hailed as the savior of the branch lines. This 100 km long secondary line, based on the Finnentrop-Olpe-Betzdorf and Olpe-Diering-hausen lines, takes you through idyllic landscapes. The section between Attendorn and Olpe passes along the banks of the Bigge Lake, a picturesque reservoir with many small and medium-sized stations and lots of industrial sidings that will guarantee variety and interest.
