Best Liveaboard Diving in Australia

Australia has some of the best diving on the planet, and a lot of it sits beyond the reach of a day boat. The outer Great Barrier Reef, the seamounts of the Coral Sea, and the remote atolls off the north west coast are hours offshore, too far to reach, dive, and return between sunrise and sunset. A liveaboard solves that. It is a boat you sleep, eat, and dive from over several days, so you wake up already moored on the reef, dive before anyone else arrives, and fit in four or five dives a day, night dives included.

That access is the whole point. Day trips give you the inshore fringing reefs; liveaboards give you the sites that made Australian diving famous. This guide covers the five regions worth building a trip around, what makes each one special, when to go, how long a typical trip runs, and the certification level it suits.

## Great Barrier Reef and the Ribbon Reefs

The Ribbon Reefs are a chain of ten narrow reefs running along the outer edge of the Great Barrier Reef north of Cairns, and they are the classic Australian liveaboard route. The signature dive is [Cod Hole](https://scubadownunder.com/dive-sites/cod-hole), where potato cod the size of a fridge hang in the water and let divers come within arm's reach. A little further along, Steve's Bommie is a single pinnacle rising from 30m, wrapped in anthias, lionfish, and pipefish from top to bottom.

The headline event is the dwarf minke whale season in June and July, when these curious whales approach snorkellers in the water, one of the only predictable encounters of its kind anywhere. Boats such as Spirit of Freedom and Mike Ball's Spoilsport run dedicated minke expeditions in those months.

- Best season: reef diving is good year round, visibility peaks May to November, minke whales June and July. - Trip length: 3 to 7 nights out of Cairns or Port Douglas. - Certification: Open Water covers most sites, Advanced opens up the deeper bommies.

Browse [Great Barrier Reef liveaboards](https://scubadownunder.com/go/liveaboard?to=gbr) to compare boats and dates.

## The Coral Sea

Past the outer reef the continental shelf falls away and the Coral Sea begins, deep blue water studded with isolated seamounts that rise from hundreds of metres down. [Osprey Reef](https://scubadownunder.com/dive-sites/osprey-reef) is the drawcard. Its North Horn shark dive draws dozens of grey reef and whitetip sharks into the open, and the walls drop into visibility that regularly runs past 40m.

This is bigger, bluer diving than the reef proper: sheer walls, pelagic action, and the sense of being a long way from anywhere. Most boats pair the Coral Sea with the Ribbon Reefs on one itinerary, so you get both the shark walls and Cod Hole in a single week.

- Best season: trips run year round, October to December brings the calmest seas and best visibility. - Trip length: 4 to 7 nights, usually combined with the Ribbon Reefs. - Certification: Advanced recommended, the walls, depth, and current reward experience.

Compare [Coral Sea liveaboards](https://scubadownunder.com/go/liveaboard?to=coral-sea).

## Rowley Shoals, Western Australia

Three coral atolls sitting about 300km off Broome, the Rowley Shoals are as remote and pristine as Australian diving gets. They are only reachable for a short window each year, so trips sell out well in advance. The diving is defined by the tides: on the run, water pours through the reef passes and you drift alongside walls of fish in gin clear water, some of the highest visibility in the country.

Because the shoals are so far offshore, a liveaboard is the only practical way to dive them. Expedition boats such as True North run multi day trips out of Broome across the spring season.

- Best season: roughly September to November, when tides and weather align. - Trip length: 6 to 7 nights round trip from Broome. - Certification: Advanced, the passes run strong drift.

See [Rowley Shoals liveaboards](https://scubadownunder.com/go/liveaboard?to=rowley-shoals).

## Ningaloo, Western Australia

[Ningaloo Reef](https://scubadownunder.com/dive-sites/ningaloo-reef) fringes the coast near Exmouth and Coral Bay, and it is the one region on this list where the biggest animals are the whole reason to go. Whale sharks arrive from March to August, and small liveaboards such as Sail Ningaloo's Shore Thing put you in the water with them day after day. Manta rays are around year round, and humpback whales pass through later in the season.

A lot of the marquee action here, whale sharks, mantas, and humpbacks, is snorkelling rather than scuba, which makes Ningaloo the most accessible region on this list for newer divers and for non diving travellers along for the trip.

- Best season: whale sharks March to August, humpback swims August to October. - Trip length: 3 to 7 nights out of Exmouth or Coral Bay. - Certification: Open Water is plenty, much of the big animal action is on snorkel.

Browse [Ningaloo liveaboards](https://scubadownunder.com/go/liveaboard?to=ningaloo).

## The SS Yongala

The [SS Yongala](https://scubadownunder.com/dive-sites/ss-yongala-wreck) is one of the world's great wreck dives and a fixture on many Queensland itineraries. A 109m steamer that went down in a cyclone in 1911 off Townsville, it now sits as an artificial reef in the middle of open sand, which concentrates marine life into a density you rarely see anywhere else: giant Queensland groupers, turtles, sea snakes, eagle rays, and schooling trevally, all over a single wreck.

The Yongala is day boat accessible from Ayr, but it also appears as a highlight on some Coral Sea and Great Barrier Reef liveaboard itineraries, so it is worth checking whether a trip you are weighing up includes it.

- Best season: divable year round, calmest conditions and best visibility August to January. - Trip length: a day trip in its own right, or one stop on a longer liveaboard route. - Certification: Advanced, the wreck sits in 14 to 28m with current and surge, and penetration is not permitted (it is a protected grave site).

## How to choose and book

Start with what you want to see and match it to the calendar: minke whales pin you to June and July on the Ribbon Reefs, whale sharks to autumn and winter at Ningaloo, and Rowley Shoals to its short spring window. Then work backwards to certification and trip length. Open Water is enough for the Ribbon Reefs and Ningaloo; the Coral Sea, Rowley Shoals, and the Yongala reward an Advanced card and a little experience.

A few things worth checking before you book: how many dives a day are included, whether nitrox and gear hire cost extra, and whether reef or marine park fees sit on top of the fare. Book early for the minke and whale shark windows, the good boats fill months ahead.

Ready to compare dates, boats, and prices? Browse [liveaboard trips across Australia](https://scubadownunder.com/go/liveaboard?to=australia).