HALF IRONMAN 70.3 Poznań, a triathlon that seamlessly blends athletic prowess with the charm of Poland's historic city. Dive into the challenge with a refreshing swim in the tranquil waters of Lake Kierskie, where the calm and warm embrace of the lake provides the perfect setting for a memorable start. The rolling start format ensures a smooth and enjoyable kick-off, allowing athletes to take on the 1.9 km swim at their own pace. With an average water temperature of 65°F/18°C, the swim promises ...