Hop a fast catamaran from Cairns to Green Island for a half- or full-day of snorkeling or a glass-bottom boat tour. See a 6,000-year-old coral cay with rainforest, accessible facilities and guided eco options.
More ways to explore the area's outdoor wonders
You step off the fast catamaran and the reef announces itself in turquoise—shallow plates of coral rim the white sand while a pocket rainforest rises a short stroll inland. On Green Island the water does the inviting work: visibility often stretches past the first bommies, while the island’s compact rainforest provides shade and a different kind of quiet.
Difficulty
easy
Duration
3–7 hours
Fitness Level
Suitable for most fitness levels; light swimming ability helpful for snorkel option and some walking on uneven paths
Wildlife
History
Green Island is a roughly 6,000-year-old coral cay and is notable as the only coral cay on the Great Barrier Reef that supports a patch of rainforest.
Conservation
The island sits within the Great Barrier Reef Marine Park and operates under reef-safe, accredited ecotourism guidelines—follow no-touch rules and use reef-safe products.
Reserve your spot on the Snorkelling or Glass Bottom Boat at Green Island from Cairns today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Check-in early
Arrive at Reef Fleet Terminal 45 minutes before departure to collect boarding passes and get fitted for snorkel gear.
Use reef-safe sunscreen
Choose mineral-based sunscreen and apply on dry skin before arriving to protect coral and marine life.
Footwear for shore
Bring reef sandals or water shoes for walking on sand and rocky flats; bare feet can be cut on coral.
Book morning departures for calmer seas
Early trips typically have better visibility and gentler conditions for snorkeling and glass-bottom viewing.
Reef-safe sunscreen
Protects skin and the reef—apply before arrival.
summer
Snorkel mask and fins (optional)
Using your own gear can improve fit and comfort in the water.
Water shoes or reef sandals
Protect feet on coral flats and island trails.
summer
Light dry bag or swim cover-up
Keeps valuables dry during transfers and provides sun coverage between swims.
spring