Roll out of Sulz am Neckar and let the ride unfold: past Schloss Wachendorf, on through the Kapfhalde and Breilried nature reserves, then by Schloss Haigerloch. After the Eichberg reserve comes the Ruine Schenkenburg, before the Kälberhalde reserve turns you back toward home. It's 76.3 km with 1084 m of climbing, almost all of it on paved surface. Castles, reserves, and one long loop that ends where it began.