Destinations
If you have dived in Cairns before, please share your experiences: Dive spots you would recommend, which Dive Center you used, Fishes & Diving, Visibility, Currents, etc. Please post your comments in the section below, by doing so you will help fellow divers to plan their next trip
Cairns is a practical base for Great Barrier Reef day boats, learn-to-dive courses and liveaboards. Depending on your time, your budget, and your diving certification you can dive in many places around Cairns. Choose nearby outer reefs for a short visit, or a northern Ribbon Reefs/Coral Sea itinerary for a longer dive holiday.
Updated 13 October 2026.
In this page you will find more detailed information about scuba diving in Cairns.
Table of contents
Best Dive Review
| Area | What makes it different | Trip choice |
|---|---|---|
| Flynn, Milln and Thetford reefs | Coral gardens, bommies and reef fish; the captain chooses suitable sites. | Day boat or short outer-reef liveaboard |
| Cod Hole and the Ribbon Reefs | More remote northern reef itinerary; potato cod and pinnacles. | Choose a specifically advertised northern programme |
| Osprey Reef / North Horn | Coral Sea walls and shark encounters; more exposed passages. | Experienced-diver liveaboard itinerary, weather dependent |
How to dive Cairns?
Cairns is the main gateway to the Great Barrier Reef and most of the liveaboards start from there. Pro Dive Cairns Scubapro offers a three-day/two-night outer-reef programme; OceanQuest suits flexible offshore stays; Coral Sea Dreaming is a smaller overnight option. For northern routes compare Spirit of Freedom and Spoilsport. Osprey Reef is not a standard Cairns day trip.
Cairns itinerary map
Select routes independently. Numbers show stop order; arrows show indicative direction. Port and reef references are not exact dive-entry positions.
- Cairns outer reefs · Scubapro example: Cairns Marlin Marina → Flynn Reef → Milln Reef → Thetford Reef → Cairns Marlin Marina.
- Ribbon Reefs · 3 nights: Cairns waterfront → Steve’s Bommie → Lighthouse Bommie → Cod Hole → Lizard Island.
- Coral Sea · 4 nights: Lizard Island → Cod Hole → Osprey Reef / North Horn → Steve’s Bommie → Cairns waterfront.
- Ribbons & Coral Sea · 7 nights: Cairns waterfront → Steve’s Bommie → Lighthouse Bommie → Cod Hole → Lizard Island → Osprey Reef / North Horn → Steve’s Bommie → Cairns waterfront.
- Minke season · Ribbon Reefs: Cairns waterfront → Steve’s Bommie → Lighthouse Bommie → Cod Hole → Lizard Island.
- Far North · northbound: Cairns waterfront → Cod Hole → Tijou Reef → Horn Island.
- Far North · southbound: Horn Island → Tijou Reef → Steve’s Bommie → Cairns waterfront.
- Ribbons and Beyond: Cairns waterfront → Norman Reef → Cod Hole → Tijou Reef → Steve’s Bommie → Cairns waterfront.
- Southern Adventure: Cairns waterfront → Myrmidon Reef → Flinders Reef, Coral Sea → Cairns waterfront.
- Far East Exploration: Cairns waterfront → Flinders Reef, Coral Sea → Magdelaine Cays reef → Lihou Reef → Herald Cays reef → Holmes Reef → Cairns waterfront.
- Yongala expedition: Cairns waterfront → SS Yongala → Cairns waterfront.
- Coral Sea Exploratory · 7 nights: Cairns waterfront → Holmes Reef → Bougainville Reef → Osprey Reef / North Horn → Cod Hole → Steve’s Bommie → Cairns waterfront.
- Northern Exposure · 7 nights: Cairns waterfront → Cod Hole → Raine Island reef → Great Detached Reef → Horn Island.
- Ashmore Exploratory · 7 nights: Horn Island → Great Detached Reef → Raine Island reef → Ashmore Reef, Coral Sea → Horn Island.
- Yongala & Coral Sea · 7 nights: Townsville · Breakwater Marina → SS Yongala → Flinders Reef, Coral Sea → Holmes Reef → Cairns waterfront.
- Coral Sea Odyssey · 10 nights: Townsville · Breakwater Marina → SS Yongala → Flinders Reef, Coral Sea → Holmes Reef → Bougainville Reef → Osprey Reef / North Horn → Cod Hole → Steve’s Bommie → Cairns waterfront.
Connections show the order of regional references, not navigation tracks or guaranteed stops. Weather, permits and the booked itinerary determine access. Read the named boat review for exact joining instructions and any flight transfer.
Principal dive-site references
- Flynn Reef: Reef reference for sites such as Gordon’s Mooring and Tracy’s Bommie; not an exact dive mooring.
- Milln Reef: Reef reference; Swimming Pools and Whale Bommie are among the operator’s named sites.
- Thetford Reef: Reef reference; bommies, walls and swim-throughs, with site choice governed by conditions.
- Steve’s Bommie: Ribbon Reef pinnacle, known for concentrated fish life and smaller reef creatures.
- Lighthouse Bommie: Ribbon Reef pinnacle; seasonal minke encounters are never guaranteed.
- Cod Hole: Northern Ribbon Reef site associated with potato cod. Follow the dive briefing and wildlife rules.
- Osprey Reef / North Horn: North Horn reference at the northern tip of Osprey Reef. Offshore access depends on weather.
- Tijou Reef: Reef reference from a published survey, not the exact dive entry point.
- Norman Reef: Outer reef reference used in the Ribbons and Beyond sample departure.
- Myrmidon Reef: Outer shelf reef reference; strong ocean conditions require suitable experience.
- Flinders Reef, Coral Sea: Offshore reef reference, distinct from Flinders Reef near Brisbane.
- Magdelaine Cays reef: Reef-group reference. A diving visit does not include permission to land on closed cays.
- Lihou Reef: Large reef-system reference, not an exact mooring or entry point.
- Herald Cays reef: Reef-group reference. Access restrictions apply to landings on protected cays.
- Holmes Reef: Reef reference from published survey coordinates; actual dives depend on conditions.
- SS Yongala: Wreck reference; weather and currents control access. No penetration of this protected wreck.
- Bougainville Reef: Reef reference from published survey coordinates; not a guaranteed entry point.
- Raine Island reef: Offshore reef reference. A dive visit does not imply permission to land on the nesting island.
- Great Detached Reef: Far Northern Reef reference; exact dive sites are chosen aboard.
- Ashmore Reef, Coral Sea: Far Northern Coral Sea reef, not Ashmore Reef off Western Australia.
Map references checked 13 October 2026: Published reef survey coordinates; Cod Hole; Steve’s Bommie; Lighthouse Bommie; Ashmore Reef; Lizard Island; Horn Island; Townsville marina; Yongala · Spirit of Freedom routes · Spoilsport routes · Pro Dive Cairns. Positions are for trip planning, not navigation.
Where to stay?
I usually use this website to book in advance my hotels in Cairns as they usually have the lowest rates I find. I like it because it's free to cancel and change the dates.
Best time to dive in Cairns
Cairns diving runs throughout the year. The drier winter months can still bring wind; summer is warmer, wetter and more exposed to disruption. A minke-whale trip is a specific seasonal itinerary, not an animal guarantee on an ordinary outer-reef booking.
The official Australian cyclone season is November–April. Check Bureau of Meteorology warnings before travelling; sailings can change outside those months too.
Top liveaboards in Cairns according to divers reviews
Dive courses
There are numerous dive centres in Cairns and not all of them offer the same service and quality. The best is to visit several dive shops and ask questions and sign up with the one you feel the most comfortable with. Compare pool/theory time, reef training dives, group size, rental equipment and accommodation. A trial dive is not an Open Water certification; ask whether the course ends with a liveaboard.
Scuba Diving conditions
Sheltered outer-reef sites can suit beginners under appropriate supervision, while offshore walls and open-water entries demand more experience. Visibility, current and surface conditions change with the site and day; do not choose a boat solely because an advertisement promises a visibility maximum.
Tell the operator about relevant health conditions before paying. Queensland medical-fitness guidance explains screening and when medical clearance is needed. Arrange insurance that covers your planned diving and evacuation; a boat safety plan is not insurance.
Snorkelling in Cairns
Travelling with a non-diver?
Silverswift accepts snorkellers on its Cairns outer-reef day trip. The adult base fare is AUD 308 plus the published AUD 10 fuel surcharge; scuba is extra. Snorkelling equipment and food are included, with no cabin involved. Check transfers and the final total. Prices checked 13 October 2026; listed fare validity runs to 31 March 2027. Silverswift fares.
Cairns offers great snorkelling opportunities. Choose a boat that advertises snorkelling supervision and suitable sites; ask about swimming ability and flotation equipment. Follow the marked area and crew instructions. Reef access is by boat, not by walking into the sea from the Cairns Esplanade.
Fishes and Coral
Turtles, reef sharks and colourful reef fish are possible on the outer reefs; macro subjects reward a slower look. Northern trips add different habitats and seasonal wildlife. Never book on the assumption that dolphins, dugongs or whales will appear.
Diving Safety
If you are planning an upcoming dive trip or travelling to Cairns, it is a really good idea to invest in travel insurance for scuba diving, because you never know what could happen and when you might need it (because accidents do happen!). I recommend this diving insurance as they offer worldwide coverage and focus on providing scuba divers a quality insurance and medical assistance service.
Cairns diving questions
Can I dive Cod Hole on a Cairns day boat?
Ordinary Cairns day boats visit nearer outer reefs. Book an explicitly named northern Ribbon Reefs itinerary for Cod Hole.
Is Cairns suitable for a first dive?
Yes, operators offer supervised introductory dives and certification courses. Medical screening, swimming requirements and the day’s conditions still apply.
Should I book a hotel before the liveaboard?
An arrival night in Cairns reduces the risk of missing an early check-in. Verify the operator’s exact meeting point and whether a transfer is included.
Leave an appropriate interval between your last scuba dive and flying, using DAN guidance and your operator’s requirements. Plan this before booking the return flight, including any scenic or island-transfer flight.
Photos Cairns
Travel Guide
Now that you know all about the underwater world, you might want to start planning your scuba holiday! Check out our Cairns Travel Review for information about how to get there, activities and excursions, where to stay, and more.
Diving Reviews for this region
Dive spots reviews in Cairns
Liveaboard Reviews in Cairns
I haven’t so far but this is definitely in my “To Do” list. Recently one of my colleague along with her BF has been there and she loved it. And the way she explained her trip to the Great Barrier Reef, I guess it’s worth seeing & experiencing.
Many things to do but my site is not letting me to do it in the near future. BUT I WILL FOR SURE
We did a liveaboard (3 days, 2 nights) with Cairns Dive Center (CDC). I do NOT recommend them! Both of their boats, the daytrip boat Sunkist, and the liveaboard boat Kangaroo Explorer, are falling apart.
The air conditioning broke both nights (and it gets really hot in the cabins without it), there is rust everywhere, and cracks/damage all over the boat.
We went to only 3 dive sites on a 10-dive trip. That’s less than 25% of the dive sites they claimed we might visit. We never made it to Milln Reef, even though CDC has dive sites there that we could have visited. Conditions were fine for moving the boat – I blame the stinginess of the owners and laziness as the reasons why we did not get to see more reef locations.
To sum up: the owners do not care about the quality of your experience with CDC – they are out to make a buck. No money is being spent on keeping the boat in good shape; it never returns to harbor, and it is falling apart. The diving was mediocre at best.
HI
I will be at CAIRNS 2 days or perhaps 3 , 22th from 23th of Novermber.
My level is 2 PADI.
What do you propose for diving ? and prices ?
Regards
Anne
Hi Julien,
Great info! I just wanted to know do you also arrange diving in Cairns? or can you suggest a good but economical diving instructor there? me and my husband are there in the second week of Feb 2016.
Thanks in advance!
Smita
Hello,
It our first time trying our hands on scuba diving…
Need to get info on lessons, we got 5 days at Cairns from 24th to 29th May 2016
Og nÃ¥ spammer jeg kortenmamfeltet ditt litt: Jeg synes egg i wot’en er helt nydelig og en vesentlig del av retten. I tillegg er wot godt med helt vanlig grovbrød til og sÃ¥nn spiste jeg det i Ã¥resvis til jeg opparbeidet meg smaken for injera.