Roll out of Regis-Breitingen and follow the Pleiße, then the Wyhra, as the route leaves the pavement behind. Past the Herrenhaus Zedtlitz, a castle, you ride on through the Bockwitz nature reserve toward the Bockwitzer See. Schloss Thierbach, another castle, comes next before the loop turns for home. With 64.1 km and 275 m of climbing, it's a day of two rivers, two castles, and plenty of unpaved rolling.