Roll out of Schönfließ and let the ride unfold: through the Waldgelände Frohnau nature reserve, past the Hubertussee lake, then along the Havel river and the Oranienburger Kanal before looping home. It's 56.4 km with 199 m of climbing, and most of it runs unpaved. A gentle mix of water, woods and canal, start to finish.