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Great Barrier Reef

The Great Barrier Reef is the world's largest coral reef system, stretching over 2,300 kilometers along the Queensland coast. It's one of the most biodiverse ecosystems on Earth and a world-class diving destination.

Altitude: Sea level (underwater to -30m for diving)Best: June to October-16.29°N, 145.45°EQueensland (Coral Sea)

History

The reef has been forming for over 20 million years and is home to an incredible diversity of marine life. Indigenous Australian peoples have lived along the reef for over 40,000 years. Captain James Cook navigated the reef in 1770 when his ship Endeavour ran aground. It was designated a UNESCO World Heritage Site in 1981.

Famous for

Snorkeling and scuba divingCoral gardens and marine biodiversityHeart Reef (natural heart-shaped coral formation)Whitehaven Beach (pure silica sand)Hill Inlet lookoutSea turtles, manta rays, and reef sharksNemo (clownfish) and Dory (blue tang)Outer reef pontoon experiencesLiveaboard diving tripsScenic helicopter and seaplane flights

How to reach

By air: fly to Cairns (CNS), Port Douglas, Hamilton Island (HTI), or Airlie Beach (PPP). By boat: daily reef trips from Cairns, Port Douglas, and the Whitsundays.

Nearby attractions

Daintree RainforestKuranda (Skyrail Rainforest Cableway)Whitsunday IslandsGreat Keppel IslandLady Elliot Island

Emergency contacts

Police: 000MedicalEmergency: 000

About

The Great Barrier Reef is visible from space and comprises over 2,900 individual reef systems, 900 islands, and 1,500 species of fish. The best way to experience the reef is by snorkeling or diving. The outer reef offers the best visibility and coral health, while inner fringing reefs are accessible from shore.

The Whitsunday Islands provide access to the heart of the reef, including Whitehaven Beach with its pure silica sand and the swirling sands of Hill Inlet. Hamilton Island is the main resort hub with direct flights from major Australian cities. Cairns and Port Douglas are the main gateways for northern reef access.

Climate change poses the greatest threat to the reef, with coral bleaching events becoming more frequent. Visitors are encouraged to choose eco-certified tour operators and use reef-safe sunscreen. The winter months (June-October) offer the best visibility and whale watching.