Roll out from Parkeerplaats Kasseedorfer Teiche und Umgebung and let the nature reserves lead the way. Past Kasseedorfer Teiche und Umgebung, on through Naturschutzgebiet Weißenhäuser Brök, then by Wesseker See, and finally through Oldenburger Bruch before the loop brings you back. It's 82.5 km, all paved, with 510 m of climbing to keep the legs honest. Four reserves, one wheel-friendly loop, and home again at the parking area.