Half Distance 70.3 Jönköping, Sweden: Race Overview, Swim, Bike & Run Course Details Swim Course: The 1.9 km (1.2 mile) swim takes place in the calm waters of Lake Munksjön. With an easy out-and-back loop, the swim is beginner-friendly but also fast for experienced triathletes. The average water temperature of 68°F (20°C) Bike Course: Cycling enthusiasts will love the 90 km (56 mile) bike course, which showcases the surrounding beauty of Jönköping’s lakes and villages. The single-loop route ...