Somewhere off Cairns right now, someone is standing on white sand looking at coral through water so clear it barely counts as water, and they got there in 45 minutes on a boat that served them a muffin. This is the thing about Cairns islands: the Great Barrier Reef, the most famous natural wonder on Earth, starts closer to this city than most people’s commute.
Which brings us to the question we get more than any other, at barbecues, in comment sections, from relatives planning visits: Green Island or Fitzroy Island? People agonise over this like it’s a property purchase. So let’s settle it properly, then introduce you to the islands nobody agonises over because nobody’s told them they exist.
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Green Island: the coral cay
Green Island is the poster child, about 45 minutes east by fast catamaran, and it’s a genuine rarity: a coral cay with a rainforest on it, sitting directly on a reef platform. Step off the sand, put your face in the water, and you’re snorkelling the Great Barrier Reef. No second boat, no pontoon transfer, no fuss.
The day works like this: snorkel straight off the beach (turtles graze the seagrass here and are gloriously unbothered by fans), ride a glass-bottom boat if you’d rather stay dry, try helmet diving if you’d like to walk on the seafloor wearing what is essentially a fishbowl, then circumnavigate the whole island on foot in about 45 minutes, feeling like an explorer with an ice cream.
Honesty corner: Green Island is popular, and the middle of the day is peak human. Early boats and late departures give you the postcard version. It’s also compact; big-day-out energy, not lost-island energy. For that, read on.
Overnight option: yes, there’s a resort, and once the last day boat leaves, overnight guests get a private coral cay evening that money can otherwise not buy.
Fitzroy Island: the rainforest island
Fitzroy Island is a different animal: a proper continental island, a drowned mountain covered in rainforest, 45 to 50 minutes from the marina. Where Green is manicured, Fitzroy is adventurous. There are walking tracks through actual jungle (the summit track earns its views the honest way), kayaks and paddleboards to hire, a turtle rehabilitation centre doing genuinely good work you can tour, and Nudey Beach, a cove of white coral rubble and impossible blue that keeps winning “Australia’s best beach” style lists. (The name is historical; swimwear is very much standard.)
The snorkelling hugs the fringing reef right off the beaches, the day can be as active or as horizontal as you like, and the island absorbs its visitors so well it rarely feels crowded. Locals lean Fitzroy, and now you know the local answer to the great question.
Overnight option: resort rooms and a campground. Island camping 45 minutes from a capital-of-the-tropics city is one of Queensland’s great under-priced experiences.
So: Green or Fitzroy?
Pick Green Island if: you want reef-off-the-beach snorkelling with zero effort, you’re short on time, glass-bottom boats and helmet diving appeal, or it’s the kids’ first reef day.
Pick Fitzroy Island if: you like your islands wilder, you want hikes and kayaks with your snorkelling, beaches like Nudey are your love language, or you’re allergic to crowds.
The power move: do both. They’re different enough that nobody has ever regretted it. For the fares, the hours ashore and every track grade side by side, read our full head-to-head, Green Island or Fitzroy Island.
Things to do on the islands
Which island suits you depends almost entirely on whether you want a resort day, a snorkelling day or a walking day.
- Green Island Tours. Which Operator Should You Book?.
- Green Island or Fitzroy Island? The Honest Cairns Answer.
- Cairns Turtle Rehabilitation Centre. Meet the Reef’s Recovering Locals.
- How to Choose a Great Barrier Reef Trip from Cairns.
- Can You Actually Do the Great Barrier Reef in Half a Day From Cairns?.
Book tours and experiences
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The quiet achievers
Frankland Islands. South of Cairns, reached via a river cruise and a short sea hop, the Franklands cap visitor numbers to around 100 a day, which is the whole magic trick. Uncrowded snorkelling, regular turtle encounters, guided island walks, and the smug feeling of being somewhere most Cairns visitors never hear about. If exclusivity matters more than facilities, this is your island.
Michaelmas Cay. A sliver of sand on the outer reef that tens of thousands of seabirds call home, protected as a sanctuary and visited by sailing catamarans. You snorkel a roped section off the beach while terns and noddies wheel overhead in numbers that make documentary narrators emotional. The sail out is half the joy. Bring a hat; the birds are enthusiastic hosts in every way.
Double Island. The island in every Palm Cove photo ever taken. It has been closed to visitors under lease arrangements for years, though redevelopment plans now aim to open it back up, and in the meantime it has starred in more sunset shots than any celebrity. We gave it a page anyway because everybody asks. Consider it the region’s most successful background actor.
Island or outer reef trip?
The other big decision. Islands give you sand under your towel, shade, walks, and snorkelling at your own pace: brilliant for families, mixed-ability groups and anyone who likes dry land as a base. Outer reef trips (pontoons and dive boats) trade the island for bigger coral walls, better visibility and more fish: the premium snorkel-and-dive product.
Our local formula: island day first to fall in love with the place, outer reef day second for the spectacle. If the budget only stretches to one and everyone can swim confidently, the outer reef edges it; if there are kids or nervous swimmers aboard, take the island.
Not sure which kind of reef trip suits you? Start with our guide to choosing a Great Barrier Reef trip from Cairns, which covers outer reef versus island, pontoon versus small boat, and the practical bits that decide whether you enjoy the day.
What to bring (and what to leave)
Reef-safe sunscreen (the water will thank you), a hat with commitment, a rash shirt or stinger suit in season (November to May, provided or hireable on most boats), motion sickness tablets taken before departure if you’re a maybe (the crossing can roll; the crew have seen everything), cash-free everything (cards work on all major operators), and a dry change of clothes for the trip home. Leave behind: coral-touching fingers, shell-collecting habits and drone ambitions (permits are strict). The reef is protected, and the operators take it seriously, which is why it’s still magnificent.
A word on doing the reef right
The Great Barrier Reef off Cairns is alive, protected and heavily managed, and the tourism operators here are among the most regulated on Earth: many run citizen-science programs, reef restoration work and marine biologist briefings as part of a standard day out. Listen to the briefings, keep your fins off the coral, and you’re not just visiting the reef, you’re funding its care. That’s a decent day’s work for a holiday.
Where to stay for the islands
Sleep close to the boats
Island days leave the Cairns marina early, and a night in town beats a pre-dawn drive from anywhere else. Compare stays with our accommodation partner Booking.com.
Booking through these links may earn us a small commission at no extra cost to you. It keeps the site running and the fact-checks flowing.
FAQs
Which is better, Green Island or Fitzroy Island? Green for effortless reef-off-the-beach snorkelling and a compact, packaged day; Fitzroy for rainforest hikes, kayaks, Nudey Beach and a wilder feel. Locals mostly pick Fitzroy; first-timers mostly pick Green; nobody who did both has ever complained.
How far is Green Island from Cairns? About 27 kilometres offshore, roughly 45 minutes by fast catamaran from the Marlin Marina in the middle of the city. Multiple departures daily, year round.
Can you stay overnight on the islands off Cairns? Yes. Green Island and Fitzroy Island both have resorts, and Fitzroy adds a campground. After the day boats leave, overnighters get the islands nearly to themselves, which regular guests describe in hushed, evangelical tones.
Do you need to be a strong swimmer to snorkel the islands? No. Both main islands have calm, shallow snorkel areas, flotation noodles and vests are freely available, and lifeguards or crew supervise organised sessions. Glass-bottom boats and helmet diving cover the committed non-swimmers.
Are there stingers at the islands? Stinger season (roughly November to May) applies to island waters too. Operators provide or hire stinger suits in season, and designated swimming areas are managed. Suit up and swim happy; the locals do.
Which island trip is best with young kids? Green Island: shortest crossing, sandy shallow entries, glass-bottom boats for the snorkel-shy, and enough structure to fill a day without exhausting anyone. Fitzroy suits families with primary-age kids and up who’ll enjoy the walks and kayaks.
Is Michaelmas Cay worth it? If you like sailing, seabirds in planet-documentary numbers and outer-reef snorkelling in one day, very much so. It’s a slower, saltier, more romantic day than the big catamaran products, and photographers rate it among the region’s best trips.
Can you visit Double Island off Palm Cove? Not at present. The island spent years closed off under a private lease, and while newer redevelopment plans aim to restore public access, there are no visitor facilities right now. You can kayak or jet ski around it on guided trips from Palm Cove, and photograph it at sunrise like everyone else on the beach. It takes an excellent photo, to be fair.
Explore the islands
Header photo: Jesse Lindemann. Courtesy of Tourism and Events Queensland.
