Green Island National Park

Park Tropical island park adjacent to Great Barrier Reef

A coral cay on the Great Barrier Reef near Cairns, Green Island National Park mixes a tropical rainforest fringe with coral beaches; visitors come for snorkeling, reef tours, glass-bottom boats and day trips from the mainland.

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Green Island National Park is a small vegetated coral cay and protected national park on the Great Barrier Reef off the coast of Queensland, Australia. It lies offshore from Cairns and forms part of the Great Barrier Reef World Heritage Area.

The island is surrounded by a fringing coral reef that provides shallow snorkelling and coral viewing close to shore. The cay itself supports a patch of coastal rainforest, shoreline walking tracks, and compact visitor facilities including a small resort and visitor services suitable for day visitors.

The cay and its reef are managed for conservation within Queensland’s national park and marine park frameworks, and the area is used primarily for tourism and recreation rather than permanent habitation.

Green Island sits on the continental shelf northeast of the city of Cairns on the northeastern coast of Australia; it is accessed by passenger ferries and tour boats from Cairns.

  • Access: Regular passenger ferries and tour boats operate from Cairns providing daily access for day trips and short stays.
  • Protected status: Part of the Great Barrier Reef World Heritage Area and managed within Queensland's national park system, so reef and island protections apply.
  • Activities: Popular activities include snorkelling, glass-bottom-boat tours and short rainforest walks on the cay.

What to See #

  • Green Island (the cay): A small vegetated coral cay with a surrounding fringing reef that is managed as the terrestrial component of the protected area. The cay contains walking tracks, visitor facilities and a compact area of coastal rainforest.
  • Surrounding reef: Fringing coral reef and shallow lagoon that lie immediately around the cay and form part of the Great Barrier Reef Marine Park; used for snorkelling and glass-bottom-boat viewing.
Green Island National Park
Green Island, QLD, Australia
-16.7612, 145.9694

How to Get to Green Island National Park #

Regular ferry and boat transfers operate from Cairns Marina (approximately 45-60 minutes). Bookings are recommended during the dry season; operators provide snorkeling gear rentals and guided options.

Tips for Visiting Green Island National Park #

  • Use reef-friendly sunscreen and follow snorkel guides' advice to avoid touching coral.
  • Book an early ferry from Cairns to avoid afternoon winds and to secure a good spot on the island's walking track.
  • Note that island day visitors must respect the marine park regulations and any restricted zones.

Best Time to Visit Green Island National Park #

May to October (dry season) is the most reliable time for reef clarity and comfortable island access.

Dry season
May-Oct · 20-28°C
Calmer seas and optimal snorkeling conditions; peak visitor period.
Wet season
Nov-Apr · 24-32°C
Hotter, more humid, with occasional storms; fewer visitors and reduced visibility on some days.

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