Top picks for Cairns Water activities
Discover 112 Water activities in Cairns on Trip.com, updated October 26, 2026, with experiences lasting from 1 to 10 hours. Find the perfect adventure for your day!
From US$72.68 per person, with an average total of US$141.75. Choose the option that suits your plan.
With 643 verified reviews, Water activities Cairns boast an average rating of 4.7.
This week's most popular Water activities: "Cairns: Green Island Snorkelling or Glass Bottom Boat", with 496 reviews and a 4.5 rating.
Now on Trip.com: "Cairns Great Barrier Reef + Fitzroy Island 1-day tour", a 6-hour adventure in Cairns!
The next available day tour departs on October 27, 2026. Book now to secure your spot!
Cairns Water activities usually take about 6 hours — perfect for a relaxed, immersive experience!
100% of Cairns Water activities now offer English-speaking guides
October is the perfect time to visit Cairns! Choose from 112 available day tours, including seasonal favorites like Cairns: Green Island Snorkelling or Glass Bottom Boat.
Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.
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112 results for Cairns Water activities
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4.7/5· 3 reviews· 191 bookedFree cancellationBook now for tomorrow97 travelers savedFromUS$96.90
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4.7/5· 16 reviews· 382 bookedFree cancellationBook now for tomorrow103 travelers savedFromUS$197.20
5.0/5· 2 reviews· 79 bookedFree cancellationBook now for tomorrowFromUS$80.77![Cairns Big Cat/Green Island Great Barrier Reef Cruise [Short Trip/Snorkeling/Glass Bottom Boat]](https://ak-d.tripcdn.com/images/0350i12000qreqyusB151_C_568_320.png?_fr=wc)
4.8/5· 4 reviews· 120 bookedFree cancellationBook now for tomorrow54 travelers savedFromUS$72.68
5.0/5· 2 reviews· 135 bookedFree cancellationBook now for tomorrow140 travelers savedFromUS$227.40
5.0/5· 1 review· 51 bookedFree cancellationBook now for tomorrowFromUS$78.93
5.0/5· 4 reviews· 378 bookedFree cancellation706 travelers savedFromUS$162.54
5.0/5· 4 reviews· 52 bookedFree cancellationBook now for tomorrow54 travelers savedFromUS$194.66![Cairns Quicksilver Great Barrier Reef cruise [Agincourt Reef/snorkeling boat lunch/optional activities]](https://ak-d.tripcdn.com/images/0356w12000p8ke40o5B27_C_568_320.jpg?_fr=wc)
4.8/5· 12 reviews· 549 bookedFree cancellationBook now for tomorrow111 travelers savedFromUS$230.77
4.5/5· 8 reviews· 175 bookedFree cancellationBook now for tomorrow260 travelers savedFromUS$176.22![Cairns Sunlover Great Barrier Reef cruise 1-day tour [optional double reef/buffet lunch/snorkeling]](https://ak-d.tripcdn.com/images/0353l12000pbtagkyB4CA_C_568_320.jpg?_fr=wc)
Trip.Select4.6/5· 23 reviews· 459 bookedFree cancellationBook now for tomorrow119 travelers savedFromUS$209.49
Free cancellationBook now for tomorrowFromUS$119.58
Cairns Big Cat Green Island Reef Cruises (optional full-day/half-day | snorkeling/glass bottom boat)
42 bookedFree cancellationBook now for tomorrowFromUS$72.68![Free upgrade to the 1-day tour of Fitzroy Island on the Sunlover in Cairns [optional snorkeling at Emerald Isle]](https://ak-d.tripcdn.com/images/0351x12000tfmqn97D564_C_568_320.jpg?_fr=wc)
3.7/5· 3 reviews· 57 bookedFree cancellationFromUS$76.28
4.5/5· 496 reviewsFree cancellationBook now for tomorrow26 consecutive positive reviews5% offLimited-time saleFromUS$84.72US$89.18
FromUS$119.88
5.0/5· 1 reviewFree cancellationBook now for tomorrowFromUS$126.63![Cairns Green Island Cruise on Big Cat [Optional Snorkeling or Glass Bottom Boat]](https://ak-d.tripcdn.com/images//0581y12000n26841tAF44_C_568_320.jpg?_fr=wc)
5.0/5· 1 review· 22 bookedFree cancellationBook now for tomorrowFromUS$77.93
4.3/5· 63 reviewsFree cancellationBook now for tomorrowFromUS$236.40
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Reviews/Trip Moments
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Reviews: Cairns Great Barrier Reef + Fitzroy Island 1-day tour
Guest User2026-10-25
The ferry crew had no issues. They brought us in, gave us fins and a mask, though without trying them on, and told us where to get lunch. It's important to remember that coral flip-flops are a must on Fitzroy Island. The entry into the water there is very difficult, as the coral immediately encroaches. We saw a stingray on the far beach, but the coral on the near beach is more beautiful.★
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Reviews: Cairns Magic Reef Great Barrier Reef 1-day tour with snorkeling, lunch, glass-bottom boat, and semi-submarine
Guest User2026-10-26
We loved everything. The staff was great, and everyone was very helpful and friendly. We arrived at the pontoon, where we could swim and sunbathe freely, look through the glass wall, and ride on the glass-bottomed boat. We had plenty of time, the lunch was delicious, and they even gave us donuts and crackers along the way.★
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Reviews: Cairns Big Cat Green Island Great Barrier Reef Cruise Half-Day Tour - Optional Morning/Afternoon Snorkeling & Glass Bottom Boat
Guest User2026-09-07
A great half-day tour! Everything was on schedule! We had a flight that day, so it was important to get back to port on time. Everything went smoothly and without any delays! The island itself is small, so two hours was enough for snorkeling and a hiking tour!★
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Reviews: Cairns Big Cat/Green Island Great Barrier Reef Cruise [Short Trip/Snorkeling/Glass Bottom Boat]
Guest User2026-09-12
Very convenient for elderly people or young kids that can't snorkel or head into the waters to view the Great Barrier Reef. Bring basic swim gears at least even if you're not going for a swim. Worth going for a walk in the waters or a light dip. If you're not keen on buffet on a boat or the restaurant choices, bring your own lunch, or just your own snack to enjoy on the island. Go for a walk on the other end of the island. Different trails to suit different stamina. If elderly or young kids is going, it may be much comfortable to book the return boat /cruise to and from Green Island, the lunch buffet /the lunch package with Emerald Restaurant / food voucher with 1 of the eateries, book the glass bottom boat ride in lieu of the snorkeling, and the semi submarine too.★
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Reviews: Whitsundays Hardy great barrier reef 1-day tour - Hamilton/Airlie beach/helicopter
Guest User2026-02-19
Good experience although whether is not that good, but good view from the pontoon★
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Reviews: Cairns Green Island Big Cat cruise 1-day tour
Guest User2026-09-23
The staff was friendly and helpful. I didn't know what time my activities would be, but they scheduled everything for me. The catamaran was new, the toilets were clean, and they gave me free tea for the first hour (after that, you had to pay). On the island, you can walk through the forest, eat, snorkel, swim, and sunbathe. Sun loungers are available for a fee. There are restrooms everywhere. Lunch is served on the boat—a buffet (meat, seafood, side dishes, salads, fruit)—but drinks are not included. Drinks are an additional fee. My activities included a glass-bottom boat and a semi-submersible boat—I recommend both. I didn't snorkel, but all the equipment was there. Basically, you sail to the island, the boat stays there the entire time, and you have all sorts of activities—you can hang out on the boat or on the island, and then it departs at the appointed time.