Porta Westfalica
The southern route runs from Preußisch Oldendorf through Hüllhorst, Bad Oeynhausen and Porta Westfalica to Minden. The length of this tour is around 95 kilometres. Unlike the hitherto largely flat section, the route now crosses the heights of the Wiehen("Wiehengebirge") and later the Weser Hills ("Wesergebirge").