Great Barrier Reef — Cairns & Ribbons, the area around Flynn Reef – Coral Gardens

Great Barrier Reef · Australia · Coral garden · Reef

Flynn Reef – Coral Gardens

Terraced coral slope falling away from an 8 m sandy mooring

Area photo: Toby Hudson · CC BY-SA 3.0

Coral Gardens is one of the named moorings on Flynn Reef, an outer-reef system about 20 kilometres east of Green Island off Cairns. The mooring sits in 8 metres on sand, with a coral plateau of staghorn stands, table-coral terraces and boulder heads behind it and a slope that steps down to 20 metres.

Where it is and how deep

Depth profile of Flynn Reef – Coral Gardens: typical dive 8–20 m (26–66 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit8 m20 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

16.7359° S, 146.2617° EPublished position for this site.

The dive

You come off the boat onto a mooring that sits in 8 metres on a sandy bottom, so the descent is short and the reef is in view from the moment you leave the surface. From the sand the coral rises as a plateau: stands of staghorn among terraces of table coral, boulder heads and plates, with soft corals swaying in the gaps between them.

Work the plateau out to its edge and the ground drops away in terraces, stepping down from roughly 10 metres to 20 at the foot of the slope. That deeper edge is the turn-around. Come back up onto the coral flat with gas in hand and spend the rest of the dive at mooring depth, where the safety stop is a matter of drifting over the gardens rather than hanging in open water.

Marine life and season

  • Pristine corals
Month-by-month season rating for Flynn Reef – Coral Gardens
JanFebMarAprMayJunJulAugSepOctNovDec
FairFairFairGoodGoodPrimePrimePrimePrimeGoodGoodFair

Season follows Great Barrier Reef: Dry season (Jun–Nov) brings the clearest water and dwarf minke whales; wet-season runoff and cyclone risk lower visibility and reliability Dec–Mar.

Questions divers ask

How deep is Coral Gardens on Flynn Reef?+

The mooring sits in 8 metres on sand, and the coral plateau beside it steps down in terraces from about 10 metres to 20 metres at the foot of the slope.

Sources

  1. Flynn Reef - Coral Gardens — Scubago
  2. Flynn Reef dive site — PADI
  3. Australia - Great Barrier Reef - Cairns — Dive The World

More dive sites in Great Barrier Reef

A dozen resident potato cod, the largest around 30 kg

10–25 m · max 32 mintermediate

Moorings from an 8 m coral garden to a 30 m wall

5–30 mintermediate

A long eastern wall dropping into deep water

10–30 mintermediate

One coral tower, 30 m to 5 m, dived by spiralling upward

5–30 mintermediate

Similar dives elsewhere

Coral garden

The Bone Yard

Albany · Australia

Dense plate coral rising from 18 m up to 13 m

13–18 mbeginner

Coral garden

Coral Gardens

Lady Elliot Island · Australia

Shallow coral regrown since the 1992 cyclone, and a strong night dive

to 12 mbeginner

Coral garden

Black Forest (Candi City)

Togian Islands · Indonesia

Temple, cabbage and mushroom coral in 15 m of water

to 15 m · max 24 mbeginner

Coral garden

Bo's Rainbow

Triton Bay · Indonesia

Fusiliers and damsels wearing colours you would not expect

to 16 mintermediate