Sites dived on the current: tidal channels like the Gold Coast Seaway, Swansea and Port Phillip Heads, and the reef passes of the Coral Sea and the Rowley Shoals. Surface marker, boat cover and slack-water timing are the essentials.
45 sites
Rottnest Island · WA
An offshore spire with big overhangs and a fish-packed cave, rising to 10 m off the West End.
Geraldton & Abrolhos Islands · WA
Anemone-covered coral bommie from 38 m to 3 m with baitfish clouds, big plate corals and curious emperors.
Pelagic action in the passages beside Batavia's Graveyard, from a trail off the Beacon Island jetty.
Albany & Great Southern · WA
One of the largest summer killer whale aggregations in the southern hemisphere – viewed from the boat, not in the water.
Ningaloo – Coral Bay · WA
A reef passage north of Coral Bay where ocean water funnels through the reef.
Rowley Shoals · WA
A fast flood-tide drift through bommies into the lagoon.
Bumphead parrotfish and sharks over white sand, ending in a fast drift.
Year-round snorkelling with WA's largest manta population, located by spotter plane.
Pilbara & Dampier · WA
A cyclone-wrecked sailing ship with anchor, masts and bow above water.
Esperance & Recherche Archipelago · WA
Boiler, engine and a 20 m hull section of a 1916 steamship in the surf zone of a remote national park.
A triple-expansion engine and bent propeller shaft swept by giant trevally.
Ningaloo – Exmouth · WA
A reef channel dive at a false passage.
Kalbarri & Shark Bay · WA
A rarely dived 1901 wreck in a Shark Bay sanctuary zone, rich with groper and lionfish.
The least-publicised atoll, with the Cunningham Island lighthouse.
Grey reefs and silvertips on a current-swept point.
Perth · WA
An upturned oil rig in 26–42 m of often clear blue water, known for grey nurse sharks and large fish.
Buried hull, windlass and whaling trypots of an 1867 barque, 15 m off Emu Point.
An occasionally exposed 1911 Norwegian barque wreck on a wild Walpole beach – a heritage walk, not a dive.
A macro drift over a sponge and sea-whip seabed.
The Shoals' deepest wall, draped in red gorgonians.
A fault-line dive at Australia's westernmost mainland point, one of Shark Bay's best-known sites.
Broome & Kimberley · WA
The world's largest inshore reef, draining in waterfalls on a 10 m tide.
Geographe Bay & Busselton · WA
A remote offshore reef with big drop-offs to 50 m, 20 nm out and rarely dived.
Licensed snorkel encounters with migrating humpback whales, July–October.
Swim beside the world's largest fish on licensed tours with spotter planes, March–July.
A 1.8 km beginner drift ending back in Bill's Bay.
A sanctuary drop-off with 20 m-plus visibility, crays, morays and baldchin groper.
Rowley Shoals pass named after the coral trout genus Plectropoma
An easy, no-boat drift over staghorn and cabbage coral straight back to town.
WWII Catalina flying boats sunk in the 1942 Broome raid, with engines and turret still recognisable.
Drifting coral gardens in wide passages, with clownfish and butterflyfish at 28-29°S.
Dramatic granite and turquoise water in Torndirrup National Park – a flat-day snorkel only.
Remote oceanic atolls with walls rising from 500 m, rarely dived.
Protected grey nurse sharks resting in an arc-shaped cave at 24-26 m off the West End - Rottnest's premier shark dive.
A tidal drift over a sponge and gorgonian garden.
A 1907 cattle steamer with boilers still breaking the surface off the tip of North West Cape.
Margaret River & Augusta · WA
Three boilers and 10 m-high engines of a 152 m Edwardian liner in 35 m off Cape Leeuwin - all 413 aboard survived.
An ocean gap in North Reef with outer-reef clarity close to Tantabiddi.
A fast tidal drift through the channel between North and South Muiron.
A ledge with swim-throughs where grey nurse sharks rest.
Walk among WWII flying-boat wrecks on the mudflats at extreme low tide.
Australia's most famous drift snorkel: float over coral bommies with sharks and turtles, straight off a white-sand…
Deep, current-swept spires and fissures at the far end of Rottnest with big fish, sharks and passing whales.
A blue-water pinnacle off Cape Naturaliste with fanning corals and big pelagics - the South West's advanced reef dive.
The 1712 VOC wreck at the foot of the Zuytdorp Cliffs, whose survivors may have been the first Europeans to live in…
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