A point-to-point 50 km ultramarathon beginning in Peckham, South London and finishing in East Peckham, Kent. The route heads out of the capital into the North Downs countryside, using a combination of urban paths, green corridors, canal or riverside sections and rural trails as it progresses south-east. Elevation is moderate, with climbing concentrated in the Downs rather than sustained mountain ascents. Underfoot conditions vary from paved surfaces early on to trail and field paths later in the race. Event-day logistics, navigation approach and aid station locations are defined by the organiser’s official race information.