Diving Blog
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Stay informed with diving tips, safety guides, and destination reviews
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
Where to dive in Tasmania, from the Tasman Peninsula's caves, seals and SS Nord to Bicheno's Governor Island, Maria Island, Tinderbox and the Kent Group.
North Solitary Island, Anemone Bay
By ScubaDownUnder Team
Anemone Bay on North Solitary Island hides a carpet of bubble-tip anemones and three kinds of anemonefish, about 20 minutes by boat from Wooli.
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
About two and a half kilometres off Byron Bay, 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
Peel Island (Teerk Roo Ra) is a shallow, silty Moreton Bay snorkel spot with a historic wreck and green-zone rules; visibility averages only 1 to 2 m.
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.
How Much Does It Cost to Get Scuba Certified
By ScubaDownUnder Team
A complete 2026 breakdown of what Open Water certification really costs in Australia, all seven line items, four common course paths, and what to ask before you pay.
Hat Head Bommie
By ScubaDownUnder Team
Underrated isolated reef bommie on the NSW mid-north coast with sheltering ledges, pelagic schools, and a steady population of moray eels and cod.
Smith Rock
By ScubaDownUnder Team
Notorious ship-killer granite outcrop off Moreton Island, a demanding advanced dive site with cave swim-throughs and reliable pelagic life.
Red Indian Fish: Australian Diver's ID Guide
By ScubaDownUnder Team
Spot the Red Indian Fish (Pataecus fronto) on Australian dive sites, how to identify it, where to find it, and what makes this cryptic reef dweller unique.
Where to Get Scuba Certified in Australia: Cairns vs Sydney vs Melbourne vs Adelaide
By ScubaDownUnder Team
Four Australian cities, four different ways to learn. Tropical liveaboard, weekend shore-diving, cold-water critter hunting, jetty dives with leafy seadragons. Here's an honest comparison so you can pick the city that fits the diver you want to be.