Green Island & Fitzroy Island tours.

Both are Great Barrier Reef islands accessible by fast ferry from Cairns but they offer genuinely different experiences. Green Island is a coral cay — a small island built entirely from coral and sand sitting on the reef itself — with a rainforest interior, an underwater observatory and fringing reef that starts in waist-deep water right off the beach. It is compact, well-facilitated and the most visited reef island from Cairns. Fitzroy Island is a continental island, larger, with more substantial walking tracks through national park, a proper beach at Welcome Bay and fringing reef accessible directly from the shore. It is quieter than Green Island even in peak season and has a more outdoors, explore-it-yourself character. If you want a managed day with facilities and easy reef access in calm water, Green Island suits. If you want more space, better snorkelling and fewer people, Fitzroy Island wins. The Fitzroy Island Day Tour on Aussie Loop is the pick for those who want the less visited of the two.

Green Island is 27 kilometres northeast of Cairns and takes around 45 minutes by fast catamaran. Fitzroy Island is 29 kilometres southeast of Cairns and takes around 45 minutes by fast ferry. Both are among the closest reef islands to Cairns, making either a realistic half-day option if time is limited, though a full day gives you proper time to explore. Fast ferry transfers to both islands depart from the Cairns Reef Fleet Terminal on the waterfront. Most day tours include the return ferry in the price. If you want to see the islands and the outer reef from above in a single trip, the Reef and Island Scenic Flight gives you both perspectives in one experience.

At Fitzroy Island, yes — particularly at Welcome Bay and the rocks around the headland where the reef starts in shallow water and coral coverage is reasonable. Sea turtles are regularly spotted directly from the beach, which is one of those wildlife encounters that catches people completely off guard. The snorkelling is accessible for beginners because the water is calm and shallow close to shore, and it deepens gradually so you can go as far as you are comfortable. At Green Island the fringing reef starts immediately off the beach and is easy to access, though the coral has experienced some pressure from visitor numbers over the years. Both islands are significantly less crowded than the main outer reef pontoon operations and give a more personal experience. All snorkel gear is included on the Fitzroy Island day tour listed on Aussie Loop.

Fitzroy Island has one of the most reliably accessible sea turtle populations of any island near Cairns. Green sea turtles feed on the seagrass and algae in the shallows around Welcome Bay and are often visible from the beach without even getting in the water. In the water they approach snorkellers with genuine curiosity and it is common to spend extended time with a single turtle at arm's length. Green Island also has turtle sightings in the water around the reef but the experience at Fitzroy is generally more intimate given the lower visitor numbers. The island is also home to the Cairns Turtle Rehabilitation Centre which cares for injured turtles before releasing them back to the reef. For a broader look at what wildlife is available across the region, the things to do in Cairns guide on Aussie Loop covers reef and island wildlife options alongside the rainforest and tablelands experiences available from the same base.

Fitzroy Island has more to it than most visitors expect from a day trip. The national park walking tracks include the Lighthouse Trail — a 90-minute return walk through rainforest to the old lighthouse at the top of the island with views across the Coral Sea — and the Secret Garden Trail through rainforest in the island's interior. The Cairns Turtle Rehabilitation Centre runs educational presentations for visitors. The beach at Welcome Bay is genuinely good for a swim even without snorkelling gear. The island resort has a cafe and bar for lunch. For a perspective of the island and surrounding reef from above before or after your visit, the Reef and Island Scenic Flight from Cairns covers both Fitzroy and Green Island in a single aerial circuit. Browse the things to do in Cairns guide on Aussie Loop if you want to compare island day trips alongside other reef and rainforest options from the same base.

Both work well for families but for different reasons. Green Island suits younger children particularly well — the island is small and manageable, the underwater observatory gives reef viewing without getting in the water, the beach is safe and calm in most conditions and the facilities are well set up for a full family day. Fitzroy Island suits slightly older children and families who want more space to explore — the walking tracks, the turtle rehab centre and the snorkelling at the rocks give an active day with a lot to look at. The ferry crossing to both islands is around 45 minutes each way which is manageable for most children. For families wanting to combine an island day with a rainforest experience on a separate day, the Cape Tribulation day trip guide on Aussie Loop maps out what a Daintree day looks like from Cairns.

June to October is the most comfortable window. Seas are calmer, visibility in the water is at its best and there are no marine stingers in coastal waters during this period. The crossing is shorter than to the outer reef so conditions are rarely rough enough to be a problem but the dry season still gives the most reliable days. November to May is the wet season and stinger season — a full-body lycra stinger suit is required for snorkelling during this period. Both islands are worth visiting year round and neither closes in the wet. Sea turtle activity around Fitzroy Island is present throughout the year. For those planning a wider Cairns trip around the best timing, the how many days in Cairns guide on Aussie Loop covers seasonal considerations alongside the main day trip options.

You can take the ferry independently to both islands without booking a guided tour. Ferry tickets to Green Island and Fitzroy Island can be purchased directly from the operators at the Cairns Reef Fleet Terminal on the waterfront. Independent travel gives you flexibility to spend as much time as you like on the island and choose your own pace. The advantage of a guided day tour is that snorkelling equipment, guided commentary, sometimes lunch, and a structured itinerary are all included in a single price. For Fitzroy Island in particular, a guided day adds context to the turtle centre, the walking tracks and the snorkel sites that significantly improves what you get from the visit. The Fitzroy Island Day Tour on Aussie Loop includes all of this in a well-paced full day from Cairns.

The outer reef has deeper, more complex coral structures with greater diversity and fish numbers — that is the honest answer. The fringing reef at both Green Island and Fitzroy Island offers accessible, interesting snorkelling that is perfectly suited to first-time visitors and those who prefer a shorter crossing and shallower water. The coral at Fitzroy Island around Welcome Bay and the headland rocks is in reasonable condition. Green Island's reef has experienced some pressure over the years from visitor numbers but still has good patches. If you have snorkelled before and want the most impressive reef experience, the outer reef is worth the longer boat trip. If you are new to snorkelling, have children, or want reef access combined with an island day, either of these islands is a genuinely good starting point. For a comparison of outer reef tour options from Cairns, the Great Barrier Reef tour comparison on Aussie Loop breaks down what each format offers.

Beyond the sea turtles, both islands have solid wildlife year round. Reef fish in the snorkel zones include parrotfish, surgeonfish, butterflyfish, damselfish and the occasional reef shark in deeper water. Osprey and white-bellied sea eagles are regularly spotted above the island canopy. Beach stone-curlews stalk the shoreline at both islands and are more confiding than most shorebirds. At Fitzroy Island, the walking tracks through national park give a chance to see skinks, rainbow lorikeets, Torres Strait pigeons and the occasional monitor lizard. The turtle rehabilitation centre at Fitzroy gives up-close access to green sea turtles being cared for before release. For a full read on what wildlife is available across Far North Queensland before you plan your days, the visiting the Great Barrier Reef guide on Aussie Loop covers marine wildlife in detail alongside what you can expect on different tour types.

Yes and it is worth doing at least once as a separate experience. From the air you can see the reef formations, coral gardens, the gradation from turquoise shallows to deep navy as the continental shelf drops away, and the relative scale of the reef system in a way that a boat at water level cannot convey. Green Island and Fitzroy Island are both visible from the air and identifiable by the reef structure around them — the coral cay of Green Island is particularly striking from altitude with its defined reef ring. The Reef and Island Scenic Flight on Aussie Loop covers both islands in an aerial circuit from Cairns and pairs well with a boat-based island day on a separate day of your trip.

They are completely different days and both are worth doing if you have the time. Fitzroy Island is reef, beach, turtles and island walks — a tropical island day where the water is the main event. The Daintree is ancient rainforest, Aboriginal cultural experiences, crocodile river cruises and the point where the forest meets the reef at Cape Tribulation — a land-based day where the forest is the main event. Both are around 45 minutes to one hour from Cairns in opposite directions — the island by ferry southeast, the Daintree by road northwest. If you are trying to choose between the two for a single day, think about whether you want to be in the water or in the forest. Most visitors to Far North Queensland who have the time do both. Have a look at the Cape Tribulation day trip guide on Aussie Loop alongside the island options to compare what fits your itinerary.