Diving Blog
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Stay informed with diving tips, safety guides, and destination reviews
Diving The Steps Kurnell: Sydney’s Shore Diving Gem
By ScubaDownUnder Team
A macro heaven with weedy sea dragons and big surprises.
Diving Cape Jervis Jetty Fleurieu Peninsula
By ScubaDownUnder Team
An underrated jetty dive rich with marine life and rustic charm
Talia Cave Shore Dive Dive Site Guide | West Coast SA, Australia
By ScubaDownUnder Team
A sea cave accessible by shore dive on the exposed west Eyre Peninsula coast, combining the geological drama of a wave-carved limestone cave with clear South...
Blue Ring Octopus: The Ocean’s Tiny Assassin
By ScubaDownUnder Team
A deadly yet beautiful cephalopod with a short, intense life.
Diving Cockermouth Island Reef Mackay Islands
By ScubaDownUnder Team
A hidden gem of the Mackay Islands
Stonefish: The Ocean’s Master of Disguise
By ScubaDownUnder Team
The world’s most venomous fish lurking in plain sight
Port Jackson Shark: The Gentle, Night-Hunting Shark of Southern Australia
By ScubaDownUnder Team
The Port Jackson shark (*Heterodontus portusjacksoni*) is a distinctive, slow-moving shark found in the temperate coastal waters of southern Australia
Port Pirie Jetty Dive Site Guide | Spencer Gulf, SA, Australia
By ScubaDownUnder Team
An upper Spencer Gulf industrial port jetty offering an unconventional urban dive with an established pylon community and the incidental marine life that all...
Blue Groper: Diving with NSW's Friendly Giant
By ScubaDownUnder Team
Where to dive with the eastern blue groper in NSW: best sites, behaviour, protection status, and why this curious reef giant loves divers.
Wobbegong: The Camouflaged Carpet Shark of Australia
By ScubaDownUnder Team
The wobbegong is a group of bottom-dwelling carpet sharks found mainly in the warm coastal waters of Australia and Indonesia
Seahorses: The Delicate Icons of the Underwater World
By ScubaDownUnder Team
The seahorse (genus *Hippocampus*) is one of the ocean’s most enchanting and instantly recognisable creatures
Bull Sharks in Australia: Are They Dangerous?
By ScubaDownUnder Team
Australian guide to bull sharks: where they live (including freshwater rivers), how big they get, why they're so dangerous, and how to spot one diving.
Grey Nurse Shark: Facts, Size and Where to Dive
By ScubaDownUnder Team
Grey nurse sharks look fearsome but are harmless to divers. Size, behaviour, where they gather on the east coast, and how to dive with them.
The Giant Cuttlefish . Masters of Disguise and the Shallow Sea
By ScubaDownUnder Team
The giant cuttlefish (*Sepia apama*) is the largest of all cuttlefish species and one of the most extraordinary marine animals found in southern Australian waters. Growing up to a metre long and weighing over 10 kg, these cephalopods are not only impressive in size but in intelligence, colour-changing ability, and complex behaviours.
Scuba Regulator Maintenance: Complete Care Guide
By ScubaDownUnder Team
How to care for your scuba regulator: rinsing routine, storage, service intervals, and the common mistakes that wreck first stages.
Cocklebiddy Cave Diving Review
By ScubaDownUnder Team
A breath-taking subterranean labyrinth for the world’s most adventurous divers
Diving the Eaglehawk Neck Caves, Tasmania’s Submerged Labyrinth
By ScubaDownUnder Team
Diving the Eaglehawk Neck Caves, Tasmania’s Submerged Labyrinth Spectacular cave diving with dramatic walls and hidden passages Diving the Eagl...
Boyinaboat Reef Diving Guide
By ScubaDownUnder Team
Boyinaboat Reef near Hillarys Boat Harbour offers beginner‑friendly diving with shallow limestone ledges, swim‑throughs, and colourful marine life including cuttlefish, rays, octopus, and schools of reef fish.
Star of Greece Wreck Dive Site Guide | Port Willunga, SA, Australia
By ScubaDownUnder Team
The iron remains of a three-masted sailing ship wrecked in 1888 on the Gulf St Vincent coast south of Adelaide, scattered across a reef in 3–12 metres of wat...
Solo or Buddy: Should you ever Scuba Diving alone?
By ScubaDownUnder Team
Explore the risks, rewards, and best practices of solo scuba diving. Learn when it might be appropriate, how to prepare, and why most divers opt for the buddy system.