Roll out of Altfriedland and the loop unfolds through the Märkische Schweiz nature reserve, then into the Stobbertal nature reserve. Onward past the Batzlower Mühlenfließ-Büchnitztal nature reserve and the Trockenrasen Wriezen und Biesdorfer Kehlen nature reserve. Just 69.5 km with 161 m of climbing, almost all on paved surface, and it brings you back to where you started.