A red and black anemonefish nestled in the tentacles of its anemone at Milln Reef on the Great Barrier Reef off Cairns
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Milln Reef

Cairns, QLD

Water temp24-30°C
Visibility15-25m
Depth1-30m
Best timeAugust to early December for settled weather; good night diving; stingers roughly November to May

Outer reef off Cairns, south of Flynn Reef, known for the Three Sisters and Whale Bommie, wall dives, swim-throughs and night diving. Green zone, boat access only.

Visibility at Milln Reef

Visibility at Milln Reef typically ranges from 15 to 25 metres, though it shifts with swell, wind and recent rainfall. August to early December for settled weather; good night diving; stingers roughly November to May generally offers the best conditions for diving here.

Air, gear and guides near Milln Reef

Browse dive shops in Cairns for fills, hire gear, servicing and guided dives at this site.