Welcome to the first Milers Colonia XC Challenge! There are two distances available in our beautiful Cologne Stadtwald: Milers Double Whopper: 2 Laps (1 mile each for a total of 3.2 km)Milers Full Cross: 4 Laps (1 mile each for a total of 6.4 km) The circuit is signposted with red signs (see reference in … Continue reading XC Challenge