Quick summary
- A day on the water with time to snorkel, dive and reach Green Island by yacht from Cairns. The sailing trip costs from US$203 and lasts 9 hours.[1]
- Cairns: Green Island & Great Barrier Reef Sailing Tour is rated 4.76 from 405 reviews, with strong guide, transport and value scores.[1]
- The Great Barrier Reef stretches more than 2,300 kilometres and includes some 3,000 individual coral reefs.[2]
- The dry season runs May to October.[3] Water temperatures range from 24°C/75°F in winter to 30°C/86°F in summer.[4]
- Reserve now and pay later, with free cancellation up to 24 hours in advance for a full refund.[1]
| Sail and snorkel | All-inclusive dive trip | Reef and helicopter | |
|---|---|---|---|
| Tour | Green Island & Great Barrier Reef Sailing Tour[1] | Best Value All-inclusive Reef Trip[5] | Outer Reef Cruise with Scenic Helicopter Flight[6] |
| From | from US$203[1] | from US$196[5] | from US$309[6] |
| Duration | 9 hours[1] | 1 day[5] | 8.5 hours[6] |
| A good fit for | Green Island plus two reef stops | Scuba dive and all-inclusive day | Reef views from the air and sea |
| Rating | 4.76 from 405 reviews[1] | 4.51 from 456 reviews[5] | 4.63 from 1,118 reviews[6] |
| Cancellation | Free cancellation, 24 hours in advance[1] | Free cancellation, 24 hours in advance[5] | Free cancellation, 24 hours in advance[6] |
Green Island sits 27 kilometres off Cairns and takes about 45 minutes to reach by catamaran.
Why the sailing tour wins our pick
Arriving
The appeal of a sailing day on the reef
A sailing day is one of the calmest ways to reach the Great Barrier Reef. You leave the harbour on a yacht, with the wind doing the work, and watch the city shrink behind you. Cairns: Green Island & Great Barrier Reef Sailing Tour follows a route by yacht to the reef, makes two reef stops, then returns by other water transport.[1] Compared with a big catamaran, a yacht feels more intimate. There is room to sit in the bow, feel the spray and watch the water change colour as you move from the harbour into the Coral Sea.
The day runs for 9 hours and is priced from US$203.[1] For travellers who want a single full day on the water, it is a straightforward choice: an English-speaking instructor is on board, and a private group option is available.[1] That makes it a good match for families with older children, couples and solo travellers alike, because you can be as active or as relaxed as you like.
From Cairns, Green Island sits 27 kilometres offshore and takes about 45 minutes to reach by catamaran.[8] The sailing route gives you time to settle into the rhythm of the boat before you slip into the water. That slower pace is the main appeal for many travellers. There is usually a stretch of open water where the boat heels gently and the only sounds are the wind and the rigging. It is a reminder that the reef is not just a destination; the crossing itself is part of the holiday.
The Green Island and reef sailing tour at a glance
The tour's full name is Cairns: Green Island & Great Barrier Reef Sailing Tour. It is listed as a snorkel and dive trip, with an English-speaking instructor and a private group option.[1] The listed stops show yacht travel to the Great Barrier Reef, a second reef stop, then other water transport back to Cairns.[1] You will spend most of the day on or near the water, so the practical rhythm is simple: board in the morning, cruise out, get into the water, then sail back as the afternoon light turns golden.
Travellers rate it 4.76 from 405 reviews.[1] The breakdown shows guide 4.9, transportation 4.8 and value for money 4.7.[1] Those are strong scores across the parts of the day that matter most: being looked after, getting out and back, and feeling the trip was worth it. A high guide score is a reassuring sign if you are new to reef snorkelling, because the crew are the people who help you feel safe and confident in the water.
You can book with reserve now and pay later, and free cancellation is available up to 24 hours in advance for a full refund.[1] Starting times are checked with availability, so you can match the day to your Cairns plans.[1] This flexibility is useful if you are still shaping your itinerary or waiting to see how the weather settles.
A sailing day gives you time to watch the reef come into view as the boat moves between stops.
The reef and what lives there
The Great Barrier Reef system spans more than 2,300 kilometres along the northeast coast of Australia and includes some 3,000 individual coral reefs.[2] It also includes 300 coral cays, 600 continental islands and approximately 150 inshore mangrove islands.[2] That is a vast patchwork of habitats, and each reef site has its own character.
The reef supports over 1,600 species of fish, over 600 species of corals and six of the world's seven species of marine turtle.[11] For snorkellers, that means a chance to see clownfish, parrotfish, coral gardens and, if you are lucky, a turtle gliding past. On a good day the water is full of movement: tiny damsels dart between coral branches, larger trevally cruise at the edge of the reef, and sea stars cling to the sand below.
Monitoring reports show hard coral cover on the northern Great Barrier Reef increased from 30.0% in 2025 to 35.1% in 2026.[12] Coral cover is one measure of reef health, and the trend in the northern region is encouraging. It is a good reminder that responsible tourism matters: choose operators who follow reef-safe practices, and avoid touching coral when you snorkel.
When to go: weather, water and stingers
Cairns has two main seasons. The dry season runs from May to October, with sunny skies, low humidity and warm, comfortable days.[3] The wet season runs from November to April and is hot and humid, with frequent afternoon showers.[3] Both seasons can work for a reef trip, but your packing list changes.
Water temperature on the reef ranges from 24°C/75°F in winter to 30°C/86°F in summer.[4] Those temperatures are mild enough for snorkelling much of the year, though you may want a wetsuit in the cooler months. In the warmer months a light rash vest or lycra suit is often enough, and it also offers a little sun protection while you float on the surface.
Marine stinger season in tropical Queensland typically runs from November through to May, when risk from dangerous jellyfish is higher.[13] If you are visiting during stinger season, ask about stinger protection when you book. Crews on reef tours are used to this and can advise you on what to wear in the water and how to respond if you see a jellyfish.
from US$203
Cairns: Green Island & Great Barrier Reef Sailing Tour is a 9-hour day with two reef stops, English-speaking instructor, free cancellation until 24 hours before.[1]
Practical details: distance, terminal and fees
Reef boats from Cairns depart from the Reef Fleet Terminal at 1 Spence Street, Cairns.[7] A modern, fully-sized catamaran from Cairns to the outer reef takes about 90 minutes one way.[14] For a sailing tour, the journey is part of the experience, with time on deck as you head out to the reef. The terminal is an efficient place to begin: check in, find your gate, and you are soon heading down the gangway to your boat.
Green Island is 27 kilometres off Cairns and takes about 45 minutes by catamaran.[8] Fitzroy Island is 29 kilometres southeast of Cairns with a ferry ride of about 45 minutes.[9] Outer reef pontoons, such as Moore Reef, sit about 40-50 kilometres offshore.[15] These distances explain why day trips from Cairns are full days: the crossing time is part of what shapes the pace.
Most reef trips include an environmental management charge set by the Reef Authority. It is $8.50 per person for reef trips of three hours or more and $4.25 for shorter part-day trips.[10] Budget for the charge when you compare tour prices. It is a small line item, but it supports the management of the marine park you will be visiting.
Other ways to see the reef from Cairns
The Best Value All-inclusive Reef Trip With Scuba Dive is one alternative, priced from US$196 and lasting 1 day.[5] It is rated 4.51 from 456 reviews and includes an English-speaking instructor.[5] This one is a strong choice if you want to fit in a scuba dive as well as snorkelling, with the all-inclusive approach simplifying the day.
Fitzroy Island Full-Day Trip with Optional Extras starts at US$76 and runs for 8 hours.[16] It is rated 4.53 from 1,899 reviews and has an English-speaking host or greeter.[16] A shorter Fitzroy option starts at US$76 and lasts 4 hours.[17] Fitzroy has a different feel from the outer reef, with a fringing reef close to shore, walking trails and a relaxed island atmosphere.
If you want a view from above, the Great Barrier Reef Cruise with Scenic Helicopter Flight starts at US$309 and lasts 8.5 hours.[6] It has an instructor who speaks Chinese and English.[6] Seeing the reef from the air gives you a sense of its scale and the vivid blue channels that wind through the coral.
How to book and what to remember
The Green Island and Great Barrier Reef sailing tour can be booked with reserve now and pay later, and free cancellation is available up to 24 hours in advance for a full refund.[1] Starting times are subject to availability, so check the calendar before you go.[1] This makes it easy to lock in a place early and then finalise the rest of your trip at your own pace.
A few things will make the day smoother: bring swimwear, sunscreen, a towel and a hat; wear sandals that can get wet; and keep your camera in a waterproof pouch. The English-speaking instructor is on board for the snorkelling and diving elements.[1] If you wear glasses or contact lenses, consider a prescription mask or keep your contact lens case in your bag; the crew can usually help with fitting masks.
Over 2.3 million tourists visit the Great Barrier Reef each year, with about 2.34 million in 2024.[18] It is a busy destination, so an early booking helps secure the day you want. At the same time, the reef is vast, and a sailing route gives you space to enjoy it without feeling crowded.
Duration of selected Cairns reef trips
Compare day-trip from prices
From prices in US dollars:[1],[5],[16].
When to book and go
Plan your sailing reef day
Choose your date
The sailing tour runs for 9 hours, so set aside a full day.[1]
Check availability
Starting times are shown when you check availability for your chosen date.[1]
Reserve ahead
Use reserve now and pay later to lock in your spot without paying straight away.[1]
Pack for the reef
Bring swimwear, sunscreen, a towel, a hat and a light layer for the sea breeze.
Cancel if plans change
Free cancellation is available up to 24 hours in advance for a full refund.[1]
Reserve your spot on the Green Island and reef sailing tour
from US$203
