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British Motorist
The British Motorist was a British Empire tanker, hit during the first wave of the Darwin raid and burning when she sank into the inner harbour. The fire and the subsequent decades of tidal action...
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Best Time of Year to Dive in Australia: A Season-by-Season Guide
By ScubaDownUnder Team
Australia is the largest dive country in the world by coastline length, and the question of when to visit produces a different answer for every region. The tropical north peaks in the dry season; the...
Best Places to Dive in Western Australia
By ScubaDownUnder Team
Western Australia covers nearly a third of the country and produces the most varied diving conditions of any Australian state. The north end of the coast belongs to Ningaloo, where the southern...
Lighthouse Reef, South West Rocks
By ScubaDownUnder Team
Three kilometres off Smoky Cape on the South West Rocks coastline, in 15 to 22 metres of water below the white tower of one of NSW's oldest working lighthouses, a granite reef extends along the...
Decompression Sickness: Symptoms, Causes, and What to Do
By ScubaDownUnder Team
Decompression sickness, commonly called the bends, is the diving-specific medical condition every recreational diver should understand and very few experience. It happens when nitrogen absorbed into...
Waterfall Bay
By ScubaDownUnder Team
Below the tallest sea cliffs in Australia, where the dolerite columns of the Tasman Peninsula rise three hundred metres above the southern Tasman Sea, a series of sea caves cuts back into the rock at...
Best Places to Dive in Tasmania
By ScubaDownUnder Team
Tasmania produces the most distinctive temperate diving in the country and arguably some of the best cool-water diving in the southern hemisphere. The state's geology is dolerite, the same Jurassic...
North Solitary Island, Anemone Bay
By ScubaDownUnder Team
Sixteen kilometres off the Wooli coastline, on the northern face of a small island that breaks the open Pacific, a single sheltered bay holds what marine biologists have documented as the highest...
Fish Rock Cave
By ScubaDownUnder Team
Two kilometres off the South West Rocks coastline, a small rocky islet rises from the Tasman Sea. Beneath it, a tunnel runs clean through the rock for 125 metres, and inside that tunnel, almost...
Scottish Prince Shipwreck
By ScubaDownUnder Team
On a calm day off the southern end of Main Beach, a dark scattered shape lies in twelve metres of water about 1.5 kilometres from the surf line: the broken remains of an iron clipper that has been on...
Lionfish in Australian Waters: Identification, Behaviour, and Sting Safety
By ScubaDownUnder Team
The lionfish is one of the most-photographed reef fish on Australian dive sites and one of the most-misunderstood. Australian divers regularly encounter several species across the northern and...
Best Places to Dive in Victoria
By ScubaDownUnder Team
Victoria's coastline is short by Australian standards but the diving is denser per kilometre than any other state. The two great features are Port Phillip Bay, the enclosed water immediately south of...
Julian Rocks Marine Sanctuary
By ScubaDownUnder Team
Three kilometres off Byron Bay's Main Beach, two weathered volcanic outcrops break the Pacific surface. Beneath them, in the meeting zone where the East Australian Current carries warm tropical water...
Discover Scuba Diving: Try Before You Commit
By ScubaDownUnder Team
Breathe underwater for the first time without committing to a full Open Water course. What a Discover Scuba Diving session involves, costs, and how it credits toward later certification.
Peel Island
By ScubaDownUnder Team
In the protected waters of southern Moreton Bay, between the mainland and North Stradbroke Island, a small forested island rises from the sand and seagrass and supports the most consistently dived...
Gold Coast Seaway
By ScubaDownUnder Team
On the incoming tide at the Gold Coast Seaway, the ocean pushes a clear front of blue water through the channel between South Stradbroke Island and The Spit, and a stretch of artificial seabed...
Fairy Bower
By ScubaDownUnder Team
On the southern arm of Cabbage Tree Bay, where Marine Parade rounds the headland between Manly Cove and Shelly Beach, a small rocky inlet drops into a shallow boulder field that has shaped Sydney...
Hippolyte Rocks
By ScubaDownUnder Team
Five kilometres off the dolerite columns of the Tasman Peninsula, two rocky pinnacles rise from open ocean and break the southern Tasman Sea. Hippolyte Rocks is a small place by surface measure, a...
How Long Does It Take to Get Scuba Certified
By ScubaDownUnder Team
Full breakdown of every component of an Open Water course, the three common paths (3-day intensive, 2-weekend standard, split referral), and what extends the timeline.
Best Places to Dive in Queensland
By ScubaDownUnder Team
Manta rays at Manta Bommie, the SS Yongala wreck, Cod Hole's giant potato cod, Osprey Reef sharks, the Tangalooma Wrecks. Where to dive in Queensland, region by region, with conditions, signature species and best season for each.