FULL DISTANCE TRIATHLON CAIRNS - COURSE SUMMARY Swim (3.8 km) at Palm Cove: Dive into the 2-lap swim at Palm Cove, starting off Williams Esplanade and exiting further north. The course, adjusted closer to shore to minimize wind, features a self-seeded rolling start in four zones based on swim time. Average water temperature is 73°F (23°C). Bike (180 km): Begin your ride at T1 in Palm Cove, heading north on Captain Cook Highway toward Port Douglas. Enjoy views from Rex Lookout and pass through ...