Experience the Premier Full Distance Triathlon in Leeds at Roundhay Park Kick off your IRONMAN journey with a 2.4-mile (3.8 km) open-water swim in Roundhay Park’s scenic lake—an iconic venue that has also hosted the World Triathlon Championship Series Leeds. After the swim, transition to a challenging 112-mile (180 km) bike ride that leads into the stunning Yorkshire Dales National Park. Follow the historic 2014 Tour de France Grand Départ route, cycling through Yorkshire’s rolling hills with ...