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Christmas Island

Barracuda Bay

North-coast reef and drop-off named for its schooling barracuda.

BoatUp to 25 m

Port Macquarie & Camden Haven

Barry's Bay (Port Macquarie)

A varied, multi-gutter bay north of Port Macquarie popular for turtles, octopus, cuttlefish and wobbegongs.

BoatUp to 20 m

Sunshine Coast

Big Plates

An easy reef of large plate corals and small overhangs.

BoatDepth not recorded

Hervey Bay & K'gari

Big Woody Island Fringing Reef

Sheltered shallow fringes of the island beside the Roy Rufus reef – an easy, low-key second dive.

BoatUp to 12 m

Forster & Seal Rocks

Black Head Reef (Forster)

A flexible reef offering both shore and boat access off Blackhead Beach, useful as a no-charter-required option.

Shore or BoatUp to 18 m

Boat (multi-day/liveaboard)Up to 25 m

Whitsundays & Bowen

Black Reef (Whitsundays)

A quieter outer reef on Whitsunday liveaboard itineraries, away from the day-boat crowds.

Boat (day trip)Up to 18 m

Ningaloo – Exmouth

Blue Holes (Ningaloo westside)

Blue holes in the outer reef.

Boat (day trip)Depth not recorded

Port Douglas

Blue Lagoon (Opal Reef)

Calm, shallow lagoon coral gardens visited only on the right tide.

Boat (multi-day/liveaboard)Up to 20 m

Ribbon Reefs & Lizard Island

Blue Lagoon (Ribbon Reefs)

A shallow southern Ribbon Reef coral garden with big Porites boulders and cuttlefish.

Boat (day trip)Up to 12 m

Ningaloo – Coral Bay

Blue Maze

An easy maze of coral heads and sand channels.

Coffs Harbour & Solitary Islands

Boambee Beach reef

A minor, essentially undocumented headland reef between Sawtell and Bonville Creek.

ShoreUp to 12 m

Jetty/Pier

Brisbane & Moreton Bay

Bongaree Jetty (Bribie Island)

A historic 1912 steamer jetty on the Pumicestone Passage for a short slack-water critter dive.

ShoreUp to 6 m

Boat (day trip)Up to 20 m

Far Northern Reef & Torres Strait

Boulder Reef (Cooktown)

Almost undived reefs off Australia's closest mainland port to the Great Barrier Reef.

Mackay

Brampton Island

Former resort island with sheltered beaches and shallow fringing reef for snorkelling in the Cumberland Islands National Park.

BoatUp to 8 m

Tweed & Byron Bay

Broken Head reefs

A rarely dived inshore reef inside a protected coastal nature reserve south of Byron Bay — solitude on the rare flat day.

Shore or BoatUp to 16 m

Boat (day trip)Up to 35 m

East Arnhem Land & Gove

Bromby Islands

Sheltered coral gardens on one side and a steep seaward wall of gorgonians and black coral on the other, patrolled by mantas,…

Boat (day trip)Up to 15 m

Heron Island & Capricorn Group

Bromfield Reef

The shallow coral-garden second dive on Heron's Sykes Reef trips, rarely visited and undisturbed.

Boat (multi-day/liveaboard)Up to 25 m

Broome & Kimberley

Browse Island

WA's most remote island, ringed by reef and guano-era shipwrecks.

Sunshine Coast

Butterflies

An easy, rolling reef with plenty of reef fish.

BoatDepth not recorded

Boat (day trip)Depth not recorded

Darwin Offshore & Artificial Reefs

Bynoe Harbour Entrance Reefs

Tidal reefs and islands at the mouth of Bynoe Harbour – a sheltered alternative to Fog Bay for self-sufficient divers.

Boat (day trip)Depth not recorded

East Arnhem Land & Gove

Cape Arnhem

The remote eastern tip of Arnhem Land – a special-permit area with potential for exploratory diving on calm days.

Shore/Rock Platform

Tweed & Byron Bay

Cape Byron headland dives

Diving and snorkelling at mainland Australia's most easterly point, on the rare calm day; otherwise a scenic novelty rather than…

ShoreUp to 8 m

Boat (day trip)Up to 20 m

Drift

Ningaloo – Coral Bay

Cardabia Passage

A reef passage north of Coral Bay where ocean water funnels through the reef.