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Green Island, South West Rocks
Dive Sites 01/10/2026

Green Island, South West Rocks

By ScubaDownUnder Team

South West Rocks is famous for Fish Rock, the through-cave swim that draws divers from around the world. But just along the coast lies its quieter, gentler...

Ile des Phoques, Freycinet
Dive Sites 29/09/2026

Ile des Phoques, Freycinet

By ScubaDownUnder Team

Off the Freycinet coast, a rugged granite island rises from the cold Tasman Sea, and the moment you drop in, the seals find you. Ile des Phoques, the Island...

Roe Reef, Rottnest Island
Dive Sites 27/09/2026

Roe Reef, Rottnest Island

By ScubaDownUnder Team

Two miles off the north-east tip of Rottnest Island, a maze of limestone rises toward the surface, riddled with caves, windows and swim-throughs. Roe Reef...

Trevally: Australia's Schooling Predators
Marine Life 25/09/2026

Trevally: Australia's Schooling Predators

By ScubaDownUnder

The most-recorded fish across our dive sites. Bigeye, giant, silver and golden trevally, how they hunt, and where to find the big aggregations in Australian water.

Rye Pier, Mornington Peninsula
Dive Sites 24/09/2026

Rye Pier, Mornington Peninsula

By ScubaDownUnder Team

If you want to photograph a seahorse on your first dive, go to Rye. The pier here, reaching out into the shallow north end of Port Phillip Bay, is one of...

Wedding Cake Island, Coogee
Dive Sites 22/09/2026

Wedding Cake Island, Coogee

By ScubaDownUnder Team

A kilometre off Coogee Beach, a low slab of rock sits awash in the swell, named for its tiered, icing-white resemblance to a wedding cake. Above the water...

Fortescue Bay & the SS Nord, Tasman Peninsula
Dive Sites 20/09/2026

Fortescue Bay & the SS Nord, Tasman Peninsula

By ScubaDownUnder Team

Beneath the highest sea cliffs in the southern hemisphere, the Tasman Peninsula keeps some of Tasmania's finest cold-water diving. Fortescue Bay is the...

Split Solitary Island, Coffs Harbour
Dive Sites 18/09/2026

Split Solitary Island, Coffs Harbour

By ScubaDownUnder Team

Twenty minutes by boat from Coffs Harbour, a rocky island that looks as though it has been cleaved in two rises from the Solitary Islands Marine Park. Split...

Nine Mile Reef, Tweed Heads
Dive Sites 17/09/2026

Nine Mile Reef, Tweed Heads

By ScubaDownUnder Team

Nine nautical miles off Tweed Heads, where New South Wales meets the Gold Coast, a reef rises from the deep that on its day ranks among the best dives in...

Leatherjackets: Australian Divers' ID Guide
Marine Life 15/09/2026

Leatherjackets: Australian Divers' ID Guide

By ScubaDownUnder

The locking dorsal spine, the sandpaper skin and the fin-rippling hover. Australia has one of the richest leatherjacket faunas on earth, and the southern jetties are the place to see it.

Sea Lions and Fur Seals in Australia
Marine Life 13/09/2026

Sea Lions and Fur Seals in Australia

By ScubaDownUnder

The best animal encounter in Australian water, with an endangered endemic at the centre of it. Australian sea lions, fur seals, where to dive with them and how to do it well.

HMAS J-Class Submarines, Bass Strait
Dive Sites 11/09/2026

HMAS J-Class Submarines, Bass Strait

By ScubaDownUnder Team

Out in Bass Strait, beyond the entrance to Port Phillip, lies a graveyard of submarines. Several of the Royal Australian Navy's J-class boats, built for the...

Tinderbox Marine Reserve, Hobart
Dive Sites 09/09/2026

Tinderbox Marine Reserve, Hobart

By ScubaDownUnder Team

Half an hour south of Hobart, a small beach at Tinderbox hides one of Tasmania's most accessible underwater experiences. Just offshore, a sandstone reef...

One Tree Sinkhole, Mount Gambier
Dive Sites 04/09/2026

One Tree Sinkhole, Mount Gambier

By ScubaDownUnder Team

In the limestone country around Mount Gambier, the ground is full of water. Rain that fell on the Limestone Coast filters down through the rock and gathers...

Fly Point & Halifax Park, Port Stephens
Dive Sites 01/09/2026

Fly Point & Halifax Park, Port Stephens

By ScubaDownUnder Team

Walk down the steps at Fly Point, swim a couple of hundred metres north, and you drop into one of the richest patches of marine life on the entire New South...

Lord Howe Island & Ball's Pyramid
Dive Sites 30/08/2026

Lord Howe Island & Ball's Pyramid

By ScubaDownUnder Team

Seven hundred kilometres off the New South Wales coast, a crescent of green volcanic peaks rises from deep blue water, ringed by the southernmost coral reef...

Port Noarlunga Reef, Adelaide
Dive Sites 29/08/2026

Port Noarlunga Reef, Adelaide

By ScubaDownUnder Team

Walk out along the Port Noarlunga jetty, climb down the stairs at the end, and you are standing on the edge of South Australia's most popular dive. A long...

Governor Island Marine Reserve, Bicheno
Dive Sites 28/08/2026

Governor Island Marine Reserve, Bicheno

By ScubaDownUnder Team

Tasmania's east coast keeps its best diving in cold, clear water, and nowhere more so than off Bicheno. A few minutes by boat from the town, the granite...

Ex-HMAS Canberra Wreck, Ocean Grove
Dive Sites 26/08/2026

Ex-HMAS Canberra Wreck, Ocean Grove

By ScubaDownUnder Team

The mooring line drops away into green water, and for the first ten metres there is nothing to see but particles drifting in the gloom. Then a shape...