The Ironman 70.3 Western Sydney returns to the International Regatta Centre on September 20, 2025. This single-day triathlon features a scenic swim in Penrith Lakes, a breathtaking bike course with views of the Blue Mountains, and a flat run along the Nepean River. The event is designed to be accessible for participants and spectators alike, with convenient check-in options and transportation services. Athletes can expect a vibrant atmosphere as they race towards the finish line, cheered on by supporters.