Swimming Pools II is a renowned dive and snorkel site on Milln Reef, part of the outer Great Barrier Reef off Cairns. Named for its naturally sheltered, pool-like coral formations, this site offers calm, clear-water snorkeling amid sprawling coral gardens, bommies, and sandy channels. The protected reef structure makes it a favourite for both beginners and experienced snorkelers exploring the vibrant marine ecosystems of the Northern Great Barrier Reef.
Swimming Pools II
IntermediateGO
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Wave Height 0.4 mSwell Period 5.2 sWind Speed 8.6 knPrecipitation 3.2 mmTidal Phase flood
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Community contribution: submitted by Daniel
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Moderate risk: Strong ocean currents
Outer reef currents can be strong and unpredictable, especially during changing tides. Snorkelers should stay close to the boat and follow the guide's directions.
Moderate risk: Stinging jellyfish
Stinging marine jellyfish, including box jellyfish and Irukandji, are present in Great Barrier Reef waters, particularly during the warmer months.
Low risk: Sharp coral
Sharp coral formations are present in shallow areas. Snorkelers should avoid touching the reef to prevent injury and protect the fragile ecosystem.
Wildlife Guide
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Getting in
Snorkel tour
Entry
Swimming Pools II is located on Milln Reef, part of the outer Great Barrier Reef. Accessible only by liveaboard dive vessel or day-tour boat from Cairns or Port Douglas, approximately a 1.5–2 hour boat ride offshore.
Parking & facilities
No parking at the site. Park at the Cairns or Port Douglas marina and board a charter vessel for the trip out to Milln Reef.
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports