A 50 mile ultramarathon held within Wendover Woods in the Chiltern Hills, typically using a looped course on woodland trails and forest tracks. Elevation gain is substantial for the distance due to repeated climbs within the confined area. Underfoot conditions are predominantly trail and can become muddy in wet weather. Participants pass a central base area regularly, where aid and support are provided. Event logistics and rules are defined by the organiser’s official information.