Dive-site story
Three Sisters is a classic outer Great Barrier Reef site situated on Milln Reef off Cairns. The site is named for three large coral bommies that rise dramatically from the white sandy seafloor toward the surface. Divers typically navigate between the pinnacles, exploring deep overhangs, soft coral gardens, and the lively sandy channels in between.
Three distinct coral towers covered in sea fans and soft corals
Schools of barracuda and fusiliers circling the pinnacles
Resting whitetip reef sharks and rays on the sandy bottom
Colonies of garden eels swaying in the channels
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The winter and spring months bring lighter trade winds, optimal visibility, and the possibility of seasonal cetacean encounters.
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 | ||||||||||||
| Chevron barracudaSphyraena qenie | Common | ||||||||||||
| Spotted garden eelHeteroconger hassi | Common | ||||||||||||
| Dwarf minke whaleBalaenoptera acutorostrata | Rare |
Marine forecast
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