UK Ultra Springtide 50K & Half Marathon 2027

The UK Ultra Springtide 50K & Half Marathon begins and ends in Arundel, a historic town in West Sussex. The half marathon starts near Arundel Castle and follows the River Arun back. This spring trail event offers two single-loop courses: a 50K ultra and a 13.6-mile half marathon. Both courses are designed for running, not technical hiking, with generally manageable terrain despite crossing the South Downs. The half marathon ascends into the Downs, proceeds east along the South Downs Way, then turns south near Wepham Woods before returning to Arundel. Runners will encounter rolling hills, grassy paths, farm tracks, and woodland trails, with approximately 1,000 feet of elevation gain. The courses are clearly marked, open to participants aged 18 and older, and the event holds UTMB Index status, beneficial for those training for longer trail races.