Roll out from the parking area at Mansholter Holz und Schippstroth, a nature reserve, and let the route carry you to Haaren, a river, before Schloss Oldenburg rises as a castle along the way. Next comes the Hunte, another river, and then the Naturpark Wildeshauser Geest, a nature reserve, before the loop returns you to where you started. It's 80.0 km with 174 m of climbing, and 4% of the surface is unpaved.