Roll out of Ruderting and let the route unfold: first the Ilz river, then two castles, Veste Oberhaus and Veste Niederhaus, one after the other. On past the Inn, then the Neue Residenz and Alte Residenz castles, before the Donau and finally the Gaißa river point you home. It's 71.5 km with 942 m of climbing, and the surface is almost entirely paved, with just a sliver unpaved. Back in Ruderting before you know it.
