Welcome to the thrilling IRONMAN 70.3 Tallinn in Estonia, an exhilarating triathlon that combines the elements of endurance, speed, and stunning landscapes. Swim: Dive into the challenge with a 1.9 km swim in the pristine waters of the Harku Lake. Athletes will navigate a single lap, showcasing their prowess in the open water. The Harku Lake, with its crystal-clear waters, sets the stage for a refreshing and invigorating start to the competition. The average water temperature, at a ...