Half Distance Michigan Triathlon Overview Swim (1.2 Miles) The swim course takes place in the calm, protected waters of Betsie Bay, right next to the transition area. This one-loop swim ensures smooth conditions, with an average water temperature of 65°F (18°C), making it ideal for race day. Bike (56 Miles) The bike course follows scenic Highway M-22 and surrounding roads in Benzie County. It features two out-and-back sections, offering a mix of rolling terrain and flat stretches. While there ...