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7 hours
Mobile ticket
Experience the breathtaking beauty of the World Heritage Great Barrier Reef. From Great Adventures' spacious reef activity platform moored at the majestic Outer Reef, the coral and marine biodiversity is at its most extreme. There’s an abundance of activities for all ages, swimmers and non-swimmers to enjoy. Snorkel and dive or stay dry and discover the reef in the underwater observatory or from the air-conditioned semi-submersible.
There’s also a great range of exciting optional activities including scuba diving, scenic helicopter flights and the exclusive Scuba-Doo underwater scooter - these are an additional cost paid on the day.
Wheelchair accessible
Infants and small children can ride in a pram or stroller
Service animals allowed
Specialized infant seats are available
Suitable for all physical fitness levels
Snorkelling can be a strenuous activity. We recommend informing crew of any medical conditions.
The minimum age for scuba diving is 12 years. Certain medical conditions and medications may preclude some people from participating.
After a single dive a wait of 12 hours is recommended before ascending to an altitude of 300 metres or greater. If doing multiple dives an interval of 24 hours is suggested.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Great Barrier Reef
Great Adventures will take you to an exclusive and spacious activity platform on the majestic Outer Barrier Reef. Snorkel, dive, view the reef from the underwater observatory and semi-submersible tour.
Great Barrier Reef
Experience the breathtaking beauty of the World Heritage Great Barrier Reef. From Great Adventures' spacious reef activity platform moored at the majestic Outer Reef, the coral and marine biodiversity is at its most extreme. There’s an abundance of activities for all ages, swimmers and non-swimmers to enjoy. Snorkel and dive or stay dry and discover the reef in the underwater observatory or from the air-conditioned semi-submersible. There’s also a great range of exciting optional activities including scuba diving, scenic helicopter flights and the exclusive Scuba-Doo underwater scooter - these are an additional cost paid on the day.
Hot and cold buffet lunch, including prawns
Reef education presentation
Use of snorkelling equipment, buoyancy vests and instruction
3 hours at the Outer Reef platform
Return fast catamaran transfer from Cairns
Semi-submersible coral viewing tour
Environmental Management Charge
Underwater observatory
Morning and afternoon tea
Hotel pick up and drop off
Optional activitiés
Reef Pontoon Tour: Enjoy 3 hours at our Outer Reef Pontoon. Includes snorkeling gear, semi-sub tour, buffet lunch, and more.
3 hours at our Outer Reef Pontoon. Includes 1 Intro Dive, snorkeling gear, semi-sub tour, buffet lunch and more.
3 hours at our Outer Reef Pontoon. Includes 1 Certified Dive, snorkeling gear, semi-sub tour, buffet lunch and more.
135 reviews
Total reviews and rating from Viator & Tripadvisor
522kerrim,Mar 8, 2026
- Review from Tripadvisor
Ok. So there is some good some bad and some meh. First off our tour on sunlovers was canceled with no notice so this company saved the day on that. We booked same day on the spot. Very grateful. Generally the staff was overwhelming nice and the food was good. They come around with the sea scooters to get you to buy the package. We wanted it but they informed us “visibility may be affected but they didn’t know how bad” ok perfect I appreciated the transparency. Our party had to go staggered due to our kids so I asked if one could go first and then if the visibility was decent/ there at all the other could book. I was told there was a wait list and if we did this the second person would be left out. Well that was a big fat lie as they only had one person per rotation booked (except 2 people on one) and each could hold many more than one. Call it high level sales I call it dishonesty about scarcity to get me to buy but whatever. The visibility was low but it was not their fault and I found it worth it anyways to try this scooter thing. The bad. We have two three year olds. One is special needs so I brought my milk for her bottle and had enough but filled her last bottle come around 3pm. My other child decided she needed milk too because her sister had some. Anyone with kids will get this. So I took a 4/5 ounce water cup and put literally 1 ounce maybe 1.5 ounces max of milk from the coffee station into said cup (I could have drank this in one sip) just to avoid a complete meltdown which would have affected the entirety of the customers on the boat. The nasty lady named Jess behind the counter stated to me that the “milk is for customers for coffee and tea only.” I responded and said ok I only have a little here and showed her to which she responded “well guess it doesn’t matter now does it since you already did it.” If I had coffee which I did not this is the amount of milk I would have put in my coffee. So for the $1500 I spent to be on this tour with my family I think I should be entitled to an ounce of milk sans coffee, not to mention after the last round of coffee was served I saw plenty of milk in the fridge when I bought my wine and they probably had more in the back. So this was 1000% not an issue of milk scarcity. Now if I had filled up a jug I would have understood her point, but an ounce? Anyways I did sarcastically comment back to her how ridiculous this position was but I did not appreciate her ignorance or rudeness for literally no reason. Another employee was very nice and said that was not the policy but she still caused me aggravation and embarrassment as I was just trying to keep my three kids content to avoid bothering other customers with this ONE ounce of milk. They also have a semi-sub which was cool. Overall I would come back to do green island and to see the reefs on a clearer day if I can ever make it to this side of the world again. Ideally Jess will not be working the ice cream stand but she’s easily avoided.




Linda M,Feb 25, 2026
- Review from Viator
There are many opportunities to explore the reef. In general, good staff and crew. Was not feeling well. The smell of the hir buffet was making me nauseous. There was fresh fruit at the end of the buffet. I asked if I could just go to the end for fruit, but was refused. I would have been given more consideration if I had puked.
rebeccamE9313KT,Feb 23, 2026
- Review from Tripadvisor
This is very organized and well communicated. Lunch was good. The snorkeling was ok. There were pretty fish but not quite what we had hoped for but it was still a great experience.
Nicolai H,Jan 29, 2026
- Review from Tripadvisor
This is a once in a lifetime experience !! The Great Barrier Reef is obviously the star of the show ! This excellent Tour Company provided the “space” to really experience all that the Reef has to offer: several hours on the Reef, with time in the water as well to rest, eat, and learn about the marine biology. - - Great Staff, excellent facilities, and many options to scale up your experience, depending on budget/ interest level. I HIGHLY RECOMMEND IT !! 🙂
Steven B,Jan 21, 2026
- Review from Viator
We booked this excursion because it advertised that it was a seven hour excursion with a meeting time of 7:30am. Doing the math, that would have the tour ending at 2:30pm , plenty of time to get back to our ship with a 4:15 pm onboard deadline. Well, we checked in the evening before to verify timelines and the cruise operator was nowhere to be found. However the operator in the booth next to it told us that the tour ended around 5:00 pm and that it would be likely that we would miss the boarding deadline which would force as to get to Sydney on our own expense. I called Viator to either cancel or find another tour that might work with our schedule. They said that they would talk to the tour operator and would get back to us. We heard nothing back until the next morning around 8:00 am . The night previous we decided to book the ship’s version of the tour which picked us up at the ship which eliminated the tendering and shuttle service we would need on top of the time we would be dropped in Cairs. This tour was twice the cost but we weren’t going home without being able to see the GBR. The tour company and Viator after the fact would not refund since we booked another tour off the ship. Pretty lame excuse when they provide no information on how long their tour really takes and how it would impact cruisers. A little information about this would have gone a long way from preventing the loss of dollars we had to incur. Cruisers - be vary cautious purchasing a non-cruise ship excursion for Cairns.
bradhP3014BO,Jan 19, 2026
- Review from Tripadvisor
1 extra star for it’s only positive: still not worth it! Pros- only later trip 10:30 going out of terminal to outer reef. Cons- First day: I am a PADI scuba instructor on the states and I was set up with a dive master and a beginner while I awaited for him to complete a “re demonstration of skills” normally taught by an instructor like myself for a fully flooded face mask and a partially flooded face mask. Instead we waited an extended amount of time for him to complete her re demonstration on a platform under a pontoon. On the reef we were continually being bogged down as the DM Vinnie pulled her afloat on top of the corals by her scuba tank the entire time. I complained to Eve the manager who seamed to be the only one that cared at the company who refunded 1 tank for the poorly planned mixup due to “lack of instructors” Day 2: we booked a trip back to reef as Eve recognized that it was not a good matchup up to old and new divers to only find that they booked us to green island not back to outer reef. I then met Shannon “the not so helpful manager” whom stated the trip to outer reef was full. Unprepared, unplanned, and not consistent for the nature of a dive company, I have not made up my mind for the next step in my complaint process as Shannon seamed not helpful.

kele c,Nov 24, 2025
- Review from Viator
This is our 2nd adventure out to the Green Island and the Outer Banks Pontoon and it just doesn't dispoint. Last year it was just us, this time we brought four more friends! Efficient and professional, they run a tip top ship excursion. Everything is provided for you, just bring your sunblock and towel. Lots to do on the pontoon and the lunch had a lot of variety.





Lesley W,Oct 27, 2025
- Review from Viator
Amazing trip to outer reef pontoon via Green Head. Perfect weather calm and no wind. Not too many people snorkeling on top of each other. Lunch great
Jeff B,Oct 26, 2025
- Review from Viator
Very good crew on this excursion! Loved the Great Barrier Reef. We were not going to be back in time to board our ship due to a time change for boarding. We took the helicopter ride that was offered on the excursion itself and loved it!! Flew over the Reef and got back to Cairns in plenty of time.
Ian k,Oct 8, 2025
- Review from Viator
Despite being a cloudy day the water was warm and we thoroughly enjoyed our day on the Reef. Well organised nad would do again.
Operated by The Quicksilver Group