Centre Marsh Baldon. The idea is to run a (100k) ultra - always returning to the same place (a static aid station effectively) - but the route(s) followed are selected at random until they add up to the required distance. The final one being the only one selected to match as closely as possible and then extra K or 2 filled in as appropriate.
Routes that have photos are indicated with a camera icon . To view the photos, click the camera icon or select the route from the list above and then select PHOTOS from the MENU above the map.