Best places to dive in Northern Western Australia

Best Places To Dive In Northwestern Australia

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Last Update: September 1, 2025

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Discover the best places to dive in northwestern Australia

Western Australia’s northern coast offers some of the most spectacular diving in the country, from vibrant coral reefs to historic shipwrecks. Whether you’re a beginner seeking shallow lagoons or an experienced diver chasing deep-water adventures, this region delivers unmatched underwater experiences. Sites like Rottnest Island, Ningaloo Reef, and Rowley Shoals teem with marine life, while legendary wrecks like HMAS Swan and Key Biscayne invite exploration. Crystal-clear waters, intricate limestone formations, and rare species like dugongs make every dive unforgettable. Discover the best places to dive in Northwestern Australia and experience the magic beneath the surface of this extraordinary coastline.

Rottnest Island

Rotto experience Thnigs to do in Fremantle today — Best Places To Dive In Northern Western Australia Diving at Rottnest Island The diversity of fish, coral species and shipwrecks in the waters around Rottnest Island makes it one of the most fascinating dive sites to be found in such proximity to a capital city. For this reason, many dive operators based on the mainland conduct day trips and dives at Rottnest Island.

With rich limestone reefs carved into intricate formations by the ocean, Rottnest is surrounded by great dive locations. With several dive sites ranging in depth, Rottnest is an excellent choice for novice to experienced divers.

Marmion Marine Park

Located off Perth’s northwest coastline, Marmion Marine Park offers a range of great sites for scuba divers of any experience level. With clear, shallow lagoons and small islands, this local dive location offers incredible underwater sights, including swim-throughs, caves and a diverse range of sea life.

HMAS Swan

Located a few hours south of Perth, the HMAS Swan is among the most significant accessible dive wrecks in the Southern Hemisphere. In 1997, the Swan sank off the coast of Dunsborough to be used as a dive wreck. The ship now sits about 30m underwater and requires an Advanced Open Water Dive ticket or higher to visit.

The Lena

The Lena shipwreck site off the coast of Bunbury has quite a fascinating history. The city specifically requested that the ship The Shibe be sunk off Bunbury’s coastline. It now lies 18m down, kilometres offshore, and offers divers a wonderful setting.

Key Biscayne

The Biscayne is a great northern dive location. It is home to an old upside-down oil rig 42m below the surface. The lowest part of the rig sits at 26m, so it is an excellent dive location for a certified Deep Diver or higher to explore.

Ningaloo Reef

In the Northwest of WA, Exmouth and Ningaloo Reef are a treasure trove of marine life, with over 220 coral species and 500 fish species. You’ll also find turtles, sharks, stingrays, and dolphins year-round, and you may even be lucky enough to glimpse the incredibly shy dugong.

Rowley Shoals

About 260 km west of Broome, this area features three separate coral atolls renowned in diving circles for their breathtaking wall dives. Swim among giant clams and shellfish and explore one of the ocean’s most extensive and pristine gardens.

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