Full Distance Triathlon Cairns Swim (3.8 km): Located at Palm Cove, the 2-lap swim starts off Williams Esplanade and exits further north. The course has been adjusted closer to shore to minimize wind impact, with a self-seeded rolling start in four zones based on estimated swim time. Average water temperature is 73°F (23°C). Bike (180 km): The course starts at T1 in Palm Cove, heading north on Captain Cook Highway towards Port Douglas, featuring scenic views of Rex Lookout. Riders will pass ...