Green Island

Island Coral cay reef island near Cairns within marine park

Coral cay on the Great Barrier Reef off Queensland, managed as a national park; day‑trip visitors snorkel, dive the reef and use the island as a reef access point from Cairns.

Green Island is a small coral cay in the Coral Sea, part of the Great Barrier Reef Marine Park off the coast of Queensland, Australia. It is a popular short-trip destination from Cairns and features a patch of coastal rainforest surrounded by a fringing reef.

The island’s highlights are its accessible snorkelling directly off the beach, the sheltered lagoon formed by the fringing reef and the compact rainforest that covers the cay. Visitor infrastructure includes a jetty and facilities for day visitors, and a small island resort.

Green Island is designated and managed for conservation within the Great Barrier Reef zoning system, with rules that regulate activities on and around the cay to protect coral and marine life.

The cay lies offshore from Cairns and is typically reached by boat; it functions as a convenient base for reef viewing, snorkelling and short nature walks on the island itself.

Protection status: Part of the Great Barrier Reef Marine Park and a designated national park island, with protected marine habitat and regulated visitor access.
Access: Located about 27 kilometres offshore from Cairns and commonly visited on day trips from that city; suitable for snorkelling directly from shore around the fringing reef.

What to See #

The cay: A small coral cay with a mature patch of coastal rainforest and sandy beaches that form the island's terrestrial core.
Fringing reef: A surrounding fringing reef that provides snorkelling and diving opportunities directly off the island and shelters the lagoon.
Visitor facilities: A jetty and visitor facilities including day-trip services and a small resort, used as a base for reef tours and marine activities.

How to Get to Green Island #

Green Island (Queensland) is a coral cay on the Great Barrier Reef reached only by boat. Regular passenger ferries and day-trip operators depart from Cairns’ Reef Fleet Terminal in the city centre; the crossing takes about 45-60 minutes. There is no road access to the island - arrive at the terminal by car or taxi and park in Cairns before boarding the ferry.

Tips for Visiting Green Island #

Take one of the earliest ferries from Cairns to avoid the full-day tour crowds and to get calmer water for snorkeling or glass‑bottom viewing around the reef.
Ask your operator about snorkel/gear handovers and sheltered snorkeling spots on the western side of the cay-many visitors head straight to the beach and miss the island's short rainforest walk and shaded picnic areas.
If you prefer fewer people on the sand and better underwater visibility, choose operators that offer smaller-group trips or timed departures rather than the large mid-day catamarans.