Dive into the Half Ironman 70.3 Poznań, where endurance harmonizes with Poznań's essence in a triumphant blend of nature, speed, and history. Immerse yourself in the crystal-clear waters of Lake Kierskie, beginning your race with a smooth rolling start. The lake's embrace provides a distinct start to your Half Ironman adventure, with an average water temperature of 65°F / 18°C enhancing the ideal racing conditions. Post-swim, gear up for the 90km bike leg, a thrilling journey through charming ...