The main points
- Green Island lies 27 kilometres off Cairns; the boat trip takes about 45 minutes.[1]
- This tour offers a cruise, a glass bottom boat or snorkelling, with the whole experience running 5-9 hours.[2]
- A host or greeter is available in English, Japanese and Chinese.[2]
- From US$78, with free cancellation up to 24 hours in advance.[2]
- The Great Barrier Reef shelters over 1,600 fish species as well as over 600 coral species.[3]
| Cruise | Glass bottom boat | Snorkel | |
|---|---|---|---|
| Suits | Island time and sea views | Staying dry while watching the reef | Getting in the water with reef fish |
| Pace | Relaxed and easy | Slow, calm and stable | Active and playful |
| Skill level | No experience needed | No swimming required | Basic comfort in water needed |
| Tip | Wander the island before the return sailing | Look down as the boat glides over coral gardens | Wear protection in stinger season[4] |
Located within the 344,400 square kilometres of the Great Barrier Reef Marine Park is the coral cay oasis of Green Island, 27km (45min boat ride) east of Cairns.
A friendly Green Island escape
Ahead of the trip
- Reserve now and pay later, with free cancellation up to 24 hours in advance.[2]
- Meet at the Reef Fleet Terminal, 1 Spence Street, Cairns.[5]
- Budget for the Great Barrier Reef Environmental Management Charge of $8.50 per day for a full-day passenger.[6]
- Allow 5-9 hours for the tour, depending on the option you choose.[2]
On the island
- A host or greeter is available in English, Japanese and Chinese.[2]
- The dry season is roughly May to October, bringing sunny skies and low humidity.[7]
- Average reef water off Cairns is 29°C in summer, December-February, and 24°C in winter, June-August.[8]
- Marine stinger season typically runs from November through to May.[4]
A calm Green Island cruise from Cairns
Green Island lies 27 kilometres off Cairns; the boat trip takes about 45 minutes.[1] This Cairns Great Barrier Reef glass bottom boat tour is built around that short hop, and reef time comes without committing to a full day at sea. The listing runs 5-9 hours, with an English, Japanese and Chinese speaking host or greeter on board.[2]
Green Island is a true coral cay, with a rainforest interior and white-sand beaches lapped by turquoise water. That combination is what makes it appealing for first-time reef visitors and travellers who want comfort and colour in equal measure. The wider Great Barrier Reef supports over 1,600 species of fish and over 600 species of corals.[3]
For first-timers, the appeal is simplicity. You book one experience, turn up at the terminal, and let the crew handle the rest. The short crossing leaves more of the day for the island itself, and with a 5-9 hour window there is room to travel with children or older companions.[2]
The glass bottom boat view
The glass bottom boat is the dry option. You sit above the water and look through clear panels as the boat moves over coral gardens. It is a gentle way to see reef life without needing to swim, and it works well for families with young children. This tour gives you the choice of taking that cruise option, the glass bottom boat, or going snorkelling.[2]
What you see depends on the day, but expect fish, hard corals and perhaps a turtle if you are lucky. Six of the seven species of marine turtle that exist worldwide live on the Great Barrier Reef.[3] Even a short glass bottom boat ride can reveal a surprising amount of colour in the shallows around Green Island.
If you have never been to the reef, the glass bottom boat is a gentle introduction. The vessel moves slowly enough to pick out shapes in the coral, and the crew often point out fish before you see them. It can be especially popular with small children, who can stay dry and still feel part of the adventure.
Green Island cruise and glass bottom boat from Cairns
Time on Green Island
The tour's 5-9 hour window leaves room to set your own pace.[2] You can stroll the island trails, sit on the beach, or spend extra time watching the water before your return crossing. The boat ride is short, and that suits children or anyone who prefers not to spend hours on a vessel.[1]
Green Island is a coral cay with dense vegetation, a long beach and a protected reef shelf. It sits 27 kilometres offshore.[1] That setting creates calm, sunlit water and a sense of being a long way from the bustle of Cairns, even though the trip from the city is quick.
A day at Green Island is as much about the island as the reef. The cay has walking tracks, sheltered picnic spots and clear shallows. You can split your time between exploring and relaxing, keep an eye on the scheduled return, and leave a little time to find shade before boarding.
Snorkel option
If you choose the snorkel option, you will spend time in the water with a mask and snorkel, close to the island's reef. The average water temperature on the reef off Cairns is 29°C in summer, December-February, and 24°C in winter, June-August.[8] That makes it possible to swim without a thick wetsuit for much of the year.
From November through to May, marine stinger season in tropical Queensland brings a higher risk from potentially dangerous jellyfish.[4] Travel during those months and you may want protective swimwear. For clear underwater conditions, ask the crew for advice before you pick a date.
For anyone new to snorkelling, the water around Green Island is generally calm and reassuring. Stay close to the beach or follow the marked reef areas, and you will likely see parrotfish, damselfish and angelfish in the shallows. If you are not sure about the conditions, ask the crew for advice before you commit to a long swim.
from US$78
The Green Island Cruise, Glass Bottom Boat or Snorkel takes 5-9 hours, with free cancellation allowed up to 24 hours beforehand.[2]
Seasons and what to pack
Cairns has two main seasons. Dry conditions usually span May through October, while wet weather typically arrives December to March.[7] Either season can work for Green Island, but the dry months are the more comfortable window for beach and boat time.
Pack light layers, sun protection and a swimsuit, and keep a dry change of clothes handy. If you are spending time on the island, a hat and reef-safe sunscreen make sense in the tropics.
Cairns is an easy city to move around, and the waterfront is compact. A day trip like this works well from a city base, especially if you are staying near the Esplanade. Allow a relaxed morning, and you will have plenty of time to reach the terminal without rushing.
Departure details and practicalities
Reef boats from Cairns depart from the Reef Fleet Terminal at 1 Spence Street, Cairns.[5] Arrive with time to check in and follow the crew's instructions for boarding. The full Green Island Cruise, Glass Bottom Boat or Snorkel runs 5-9 hours and is a manageable half-day-plus trip from central Cairns.[2]
The Great Barrier Reef Environmental Management Charge for a full-day passenger is $8.50 per day.[6] It is a standard part of visiting the marine park, and knowing about it helps before you book your day on the water.
Boarding is straightforward, but arriving early is always a good idea, especially in school holidays. The terminal sits right in the heart of Cairns, close to cafes and hotels, and a short wait is no hardship. Keep your booking confirmation handy and listen for the crew's boarding call.
Who should take this tour
This Green Island experience is a good match if you want the Great Barrier Reef without a long boat ride or a big time commitment. The option-based format gives you room to decide how wet you want to get, and the 5-9 hour window fits into a day in Cairns without dominating it.[2] The booking terms are flexible as well: reserve now, settle later, and cancel for no charge up to 24 hours ahead.[2]
Travellers who want to see fish and coral without entering the water will appreciate the glass bottom boat. Those who enjoy swimming can pick the snorkel option and see the reef from the surface. If you want more time at sea, other full-day reef trips from Cairns exist, but this Green Island cruise is a gentle introduction presented with clear booking options.
If you have limited time, this is an efficient way to see a coral cay and the reef in one morning-plus afternoon. It is not the most adventurous reef trip on offer, but the flexible options make it a reliable choice. The combination of a dry glass bottom boat ride and an optional snorkel covers more travel styles than many single-activity tours.
Species found on the reef
Species counts as stated in the reef life fact.[3]
Compare reef day options
From-prices: Green Island Cruise US$78[2], Full-Day Green Island Cruise US$77[9], Snorkel and Glass Bottom Boat US$109[10], All-Inclusive Half-Day Reef Trip US$139[11].
When to go
Plan your Green Island day
Choose your option
Book Cairns: Green Island Cruise, Glass Bottom Boat or Snorkel with reserve now and pay later.[2]
Head to the terminal
At 1 Spence Street, Cairns, check-in takes place at the Reef Fleet Terminal.[5]
Ride to Green Island
The boat ride takes about 45 minutes to cover the 27 kilometres.[1]
Pick your pace
The full trip runs 5-9 hours, leaving you time to enjoy the island without rushing.[2]
Know the reef charge
Plan for the Great Barrier Reef Environmental Management Charge of $8.50 per day for a full-day passenger.[6]
Reserve your Cairns Great Barrier Reef glass bottom boat day
from US$78
