"Tropical triathlon in Cairns — warm waters, lush scenery, and year-round sunshine."
🏊 Swim
Ocean swim in Cairns
🚴 Bike
Rolling bike course through Cairns region
🏃 Run
Run course through Cairns
Transition Details
T1/T2 are in different locations · Surface: pavement
Weather
Typical race-day conditions: 13°C with 55% humidity.
Registration
https://www.example.com/ironman-70-3-cairns
The Story
Ironman 70.3 Cairns takes you to tropical North Queensland, gateway to the Great Barrier Reef. The warm tropical ocean swim in Palm Cove opens the day in temperate ocean water at 20°C. The bike course delivers 500m of climbing — rolling through tropical rainforest and sugarcane fields. The run brings you home through Cairns, where Cairns Esplanade with the Coral Sea alongside.
Triathlon at the edge of the Great Barrier Reef — tropical water, rainforest riding, and Coral Sea running. Every race has a personality shaped by its geography, its climate, and its people. Ironman 70.3 Cairns is worth the journey.
"Racing in Cairns — the course shows you the real Australia, not the tourist version."
"Triathlon at the edge of the Great Barrier Reef — tropical water, rainforest riding, and Coral Sea running."
What It Feels Like
Ironman 70.3 Cairns in Cairns, Australia — an honest rolling course in cool conditions that rewards the well-prepared.
🏊 The Swim
Cool ocean swimming at 20°C. Wetsuits may or may not be allowed depending on race-day temperature.
🚴 The Bike
Rolling course with 500m of climbing. The rolling terrain rewards steady power output.
🏃 The Run
Through Cairns in cool conditions (13°C average). Cooler conditions favour fast running if the bike hasn't broken you.
Legendary Moments
Ironman 70.3 Cairns Launches
The race comes to Cairns, bringing branded half-distance triathlon to tropical North Queensland, gateway to the Great Barrier Reef.
💡 Insider Tips
- → The swim at 20°C may or may not be wetsuit-legal. Prepare for both scenarios.
- → The 500m of climbing is honest but not extreme. Train for rolling terrain — steady power through undulations.
- → Pack warm layers. Cool conditions demand extra clothing options in transition bags.
- → Arrive 2-3 days early to acclimatise and explore Cairns. The travel experience is part of the value.
Prepare for This Race
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FAQ
What distance is the Ironman 70.3 Cairns? +
The Ironman 70.3 Cairns is a Half Ironman / 70.3 distance triathlon: 1900m swim, 90km bike, and 21.1km run (113km total) in Cairns, Australia.
When is the Ironman 70.3 Cairns? +
Typically held in June on a Saturday.
Water temperature and wetsuit rules? +
Ocean water at 20°C average. Wetsuits are allowed.
How hilly is the bike course? +
500m of climbing over 90km. Profile: rolling. Drafting not allowed.
What's the weather like on race day? +
9–20°C, 55% humidity, 31% rain chance, 15 km/h winds.
Average finish time? +
Approximately 5h 30m. Varies with conditions and athlete experience.
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