Half Distance Triathlon Western Australia – Busselton Busselton, Western Australia, is a prime destination for athletes chasing personal bests, thanks to its fast course, warm weather, and relaxed atmosphere. Swim (1.9KM): A protected foreshore swim with minimal weather exposure, averaging 66°F (19°C) water temperature. Bike (90KM): A fast, flat single-loop course featuring coastal roads and the scenic Tuart Forest, with stunning ocean and bushland views. Run (21.1KM): A two-lap, mostly ...