Scuba Season
Underwater at Cook Island
Green Sea Turtle confirmed 24 days agoPeak season now

Cook Island

Byron Bay · Australia

Cook Island Aquatic Reserve sits just south of the Queensland border and north of Byron Bay, accessible from Fingal Head. The island's rocky reef system holds some of the highest coral cover on this stretch of coast, with hard coral gardens on the northern faces in 10 to 20 metres. Common dolphins regularly pass through on early morning boat trips and occasionally interact with divers in the water. Green turtles are abundant and among the most relaxed in the region — resting under ledges and feeding on algae with little concern for divers. Reef fish diversity is notably higher here than at Julian Rocks, reflecting the stronger tropical influence.

Conditions

Depth

5 to 22 m

Open water and up

Current

Usually gentle

Can pick up on the edge

Visibility

10 to 22 m

Clearest in the calm season

Water

19 to 28°C

5mm wetsuit

Month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Water (°C)252524232220191920222324
Vis (m)8881010101010101088
CurrentModerateModerateModerateGentleGentleGentleGentleGentleGentleGentleModerateModerate

Your chances of seeing each animal

See all species recorded here →

Gear

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 5mm full wetsuit · cooler water
    • Dive computer