Roll out from Parkeerplaats Pferdeweiher on an 81.4 km loop that links nature reserves with a watermill and a castle. Spin past Grutbend, then Kovermühle's watermill, before Bremmersbruch and Burg Uda's castle break up the rhythm. NSG Rintger Bruch and Salbruch round out the green streak on the way back. With 220 m of climbing and mostly paved surface, it's a steady day out.