The Great Barrier Reef, Queensland
Stretching more than 2,300 kilometres along Queensland's coast, the Great Barrier Reef is the largest living structure on Earth and one of the seven natural wonders of the world. Whether you snorkel, dive or take a glass-bottom boat, the sheer density of colour — parrotfish, staghorn coral, manta rays — is unlike anything else on the planet.
Getting Out on the Water
Cairns and Port Douglas are the twin gateway towns, each offering dozens of licensed reef operators running day trips to the Outer Reef. Silversea Expeditions and Passions of Paradise are two well-regarded operators; always check they hold a Great Barrier Reef Marine Park Authority permit.
For a quieter encounter, book a liveaboard dive trip departing Cairns — spending two nights anchored at Cod Hole near Ribbon Reef No. 10 gives you dusk and dawn dives when the big potato cod and reef sharks come out to patrol.
Beyond the Snorkel Mask
Scenic helicopter flights from Cairns reveal the reef's true scale: the patchwork of turquoise lagoons, sandy cays and deep indigo channels looks almost digital from the air. Lady Elliot Island, at the southern tip, is one of the best spots for swimming with manta rays year-round.
The reef is under genuine climate pressure, so choose operators who are eco-certified under the Reef & Rainforest Research Centre's programme — your dollars directly fund coral restoration projects.
The Great Barrier Reef, Queensland on video
More of Australia
Discover where to stay, what to do and the best deals for your trip.
Explore Australia →