HALF DISTANCE TRIATHLON Western Sydney in Penrith, New South Wales SWIM - 1.9kmDive into the calm waters of Penrith Lake at the Sydney International Regatta Centre (SIRC). Start from a pontoon, pass under the Olympic Bridge, and exit smoothly. Water Temp: 66°F (19°C). BIKE - 90kmRide a scenic two-lap course with smooth roads, technical turns, and landmarks like Penrith Whitewater Stadium. Enjoy breathtaking views of the Blue Mountains. RUN - 21.1kmRun three laps around SIRC, crossing bridges ...