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4 hours
Mobile ticket
Explore the tropical paradise of Green Island on a half day trip from Cairns. Enjoy around two hours exploring the Great Barrier Reef island with plenty of time to snorkel. You can even take an optional semi-submersible submarine tour to get close to the reef without getting wet.
Infants and small children can ride in a pram or stroller
Service animals allowed
Infants are required to sit on an adult’s lap
Suitable for all physical fitness levels
Please advise any specific dietary requirements at time of booking
Wheelchair accessibility is available but limited. Passengers must have some mobility and/or the presence of a carer who can assist them.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Big Cat Green Island Reef Cruises - Day Tour
This is where guests start their tour, at the Reef Fleet Terminal.
Green Island Cruise - Day Tour (Big Cat Green Island Reef Cruise)
Spend time at Green Island either snorkelling or join a glass bottom boat tour
Glass bottom boat tour (if selected)
Semi-submersible tour (if selected)
Cruise transfers to and from Green Island by modern air-conditioned catamaran
Use of Snorkel Gear (if selected)
Optional activities. (Can be booked locally, subject to availability. Payable directly on the day)
Food and drinks (available to purchase)
No transfer pick up/drop off
9am Cruise Only: Green Island roundtrip cruise; 2 hrs free time and use of snorkel gear. NO hotel pickup included in this option
Includes Glass Bottom Boat
Semi-submarine + Snorkel Gear: Semi-submarine tour is available while enjoying your time on Green Island
PM Tour 1PM
Semi-submarine + Snorkel Gear: Semi-submarine tour is available while enjoying your time on Green Island
AM Tour 9AM
1pm Cruise : Green Island roundtrip cruise; 2 hrs free time and use of snorkel gear.
No other inclusions
No other inclusions
Includes a Glass Bottom Boat
198 reviews
Total reviews and rating from Viator & Tripadvisor
Claire K,,Feb 15, 2026
- Review from Viator
Overall a great experience for a day trip to the GBR. Wildlife in abundance, with plenty putting on a show. Boat ride was smooth even on a mildly rough sea - some local commentary would be beneficial. A guide on snorkelling spots (not just beginner/advanced areas) would also be nice for visitors wanting to see better pieces of reef. Snorkelling gear could do with an update and some extra anti fog application for better use of gear - our hired gear was leaky and required many frequent breaks to clear. Staff were all very welcoming and added to a great experience.
Niki J,,Jan 31, 2026
- Review from Viator
This is a fantastic tour for seeing the fish in the mini submarine. We were ferried to the green island the we boarded the ferry to the mini submarine and we saw beautiful fish, shark, turtles. It was the best tour and worth it. We did not do snorkeling as we did on another tour and did not see much. There not much to see on the island but it’s nice and covered to walk in the shade. I would highly recommend the mini submarine.
Greg S,,Jan 29, 2026
- Review from Viator
A great experience, if you haven't been to the green island. The semi-Submersible tour was exceptional with a wonderful marine biologist who kept live commentry throughout the tour. We get to a see a lot at ocean bottom full of sea urchins and learn abou the habitat. Do not miss it !
mike67j,,Jan 25, 2026
- Review from Tripadvisor
This a great trip, boat location very easy to find and lovely trip out to the island We opted for the semi sub and glass bottom boat options and have to say the semi sub was out of the world, getting so close to all the marine life and coral, even saw some different types of rays and sharks plus loads of amazing fish literally right next to you All staff were very friendly and extremely knowledgeable You then get about 45mins on island which was plenty as allowed us to stroll around and grab drink; the beaches are stunning Everything ran to time and journey back was very smooth
Martin N,,Jan 22, 2026
- Review from Viator
Glass bottom boat is quite boring, the trip itself is too short hence not much to see. The trip itself can easily cut short because of delay to due other boats arrival at the port. It is not worth the money at all.
Simon J,,Jan 18, 2026
- Review from Viator
Wonderful team - very helpful and accommodating! Beautiful experience viewing turtles and array of sea life.
Tara W,,Jan 15, 2026
- Review from Viator
Half day tour is not enough time to snorkel and do the semi-submersible. Snorkelling from the island was also quite a let down - not a great deal to see. However we did spot several turtles from the jetty which was awesome.
O7505HDbarryn,,Jan 13, 2026
- Review from Tripadvisor
Totally underwhelmed. Had really looked forward to seeing the reef and fish but whole experience was a complete waste of time as all we saw was green coloured fish and coral. Guide said the coral is colourful but we saw nothing but green. In my oppinion Green island not the place to view the reef as such poor quality water and visibility. Boat journey out was ok but coming back very busy and people standing.







Steven C,,Jan 13, 2026
- Review from Viator
If you book the semi submersible which is really good the time you have on the island for snorkelling is very limited. We arrived around 2pm with the semi submersible trip at 2.45pm. By the time you are ready to snorkel you only have 20 minutes.
anonymousa987,,Jan 13, 2026
- Review from Tripadvisor
I thought this trip was going to be one where they take you out on a boat and then do snorkelling. That didn’t happen. They left us at Green island with the snorkelling equipment. I mean, at least we can snorkel there, and explore Green island? Wrong. The sea at Green island was muggy, and we only saw 2 types of fish. There was no coral whatsoever. The most we saw was grass 5cm tall. Everyone we talked to said they had the same experience. It was a waste of time. If we have to snorkel without a guide or any past experience, at least drop us at a good place to snorkel! Had a very bad experience. Would not recommend this company at all. We didn’t get a chance to experience a World Heritage Site because of them.
Operated by Big Cat Green Island Reef Cruises