Dive-site story
Situated along the outer edge of the Great Barrier Reef offshore from Cairns, Milln Reef encompasses diverse moorings including Whale Bommie, Petaj Bommie, and the Swimming Pools. Massive coral pinnacles rise from sandy channels, offering wall drop-offs, swim-through arches, and shallow coral gardens frequented by sea turtles and reef sharks. Sheltered sandy flats between the bommies make the reef a dependable spot for night diving.
Diverse underwater architecture featuring towering coral bommies, arches, and narrow swim-throughs
Frequent encounters with resident green sea turtles resting on shallow coral tables
Night diving opportunities where whitetip reef sharks hunt actively across the sand patches
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Spring and early summer bring calmer winds, exceptional water clarity, and the annual mass coral spawning event.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whitetip reef sharkTriaenodon obesus | Common | ||||||||||||
| Green sea turtleChelonia mydas | Common | ||||||||||||
| Humphead wrasseCheilinus undulatus | Common | ||||||||||||
| Giant clamTridacna gigas | Common | ||||||||||||
| Tawny nurse sharkNebrius ferrugineus | Seasonal |
Marine forecast
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