Dive site · access from Cairns & Outer Great Barrier Reef

Flynn Reef

Flynn Reef: Outer-edge coral terrain.

Depth
5–30m
Current
Moderate
Minimum level
Open water
Access
Boat
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The case for it

Why dive here

  • Outer-edge coral terrain
  • Bommies and swim-around formations
  • Used by multi-day boats

Check before booking

What may rule it out

  • Moderate current can affect whether the site is suitable on the day.

Access and timing

Plan this through Cairns & Outer Great Barrier Reef

Best overall months: Jun, Jul, Aug, Sep, Oct. Check the destination planner for operating season, wildlife and other matching sites.

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Wildlife

Seen around Cairns & Outer Great Barrier Reef

rareoccasionalcommonly seenpeak seasondestination closed

These are destination-level records, not confirmed sightings at Flynn Reef.

Humpback whale
Sighting likelihood by month
MonthLikelihood
Januaryrare
Februaryrare
Marchrare
Aprilrare
Mayrare
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberrare
Novemberrare
Decemberrare
Potato cod
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional
Reef manta ray
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional
Grey reef shark
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional
Hawksbill turtle
Sighting likelihood by month
MonthLikelihood
Januaryoccasional
Februaryoccasional
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberoccasional
Octoberoccasional
Novemberoccasional
Decemberoccasional
See the destination wildlife guide

Nearby alternatives

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Sources & last checked

Checked September 2026

Research is source-backed, but conditions and fees should still be confirmed locally.

View 1 source and checking notes

Note on the data: Coordinates are approximate; not surveyed dive-site GPS.