Join athletes from around the world to conquer the IRONMAN 70.3 St. George, one of the most breathtaking triathlon courses globally. Swim The 1.2-mile swim takes place in the crystal-clear waters of Sand Hollow State Park reservoir in Hurricane, Utah. With a fast, direct course and an average water temperature of 60°F (16°C), it's perfect for setting a personal best. Bike The 56-mile bike ride offers a scenic loop starting in Hurricane, traversing rolling hills, climbing into Snow Canyon ...