Spend a day on a fast catamaran from Cairns to Green Island and an activity platform on the Outer Great Barrier Reef. Snorkel, dive, or stay dry in the semi-submersible while enjoying a buffet lunch and reef education.
More ways to explore the area's outdoor wonders
The catamaran thuds off Cairns, spray on your face and the coastline shrinking behind you as the Coral Sea opens up. In 45 minutes you’re stepping onto Green Island’s sand and rainforest boardwalks — palms and pandanus framing coral-studded shallows — before the boat carries you farther out to a moored activity platform on the Outer Great Barrier Reef.
Difficulty
moderate
Duration
10 hours (full day)
Fitness Level
Suitable for people in light to moderate fitness; swimmers should be comfortable in open water for snorkeling sessions.
Wildlife
History
The Great Barrier Reef is World Heritage-listed and the surrounding waters are part of the traditional sea country of the Gimuy Walubara Yidinji and Yirrganydji peoples, with cultural connections and traditional ecological knowledge tied to the reef.
Conservation
Tours include an Environmental Management Charge; operators emphasize no-touch policies and reef-safe practices—avoid stepping on coral or using non-approved sunscreens to reduce impact.
Reserve your spot on the Full Day Great Barrier Reef & Green Island Day Tour from Cairns today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef-safe sunscreen
Use biodegradable sunscreen and apply before boarding to protect coral; reapply with care after water activities.
Prepare for motion
If you’re prone to seasickness, take preventative medication and sit mid-ship; the crossing can be brisk.
Pack a light dry layer
Wind and spray on the outer reef can be cool—bring a lightweight windbreaker to stay comfortable between activities.
Listen to briefings
Crew give specific safety and environmental instructions—follow them to protect both people and reef life.
Reef-safe sunscreen
Protects skin and the reef; apply before boarding.
summer
Mask and snorkel (personal)
Personal fit improves comfort and visibility, though gear is provided.
Light wetsuit or rash guard
Provides sun protection and warmth for longer swims or cooler mornings.
spring
Waterproof day pack
Keeps phone, medications and dry clothes safe on a wet boat day.