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The Great Barrier Reef is located in the Coral Sea, off the coast of Queensland, Australia. It stretches for over 2,300 kilometers and is home to over 2,900 individual reefs and 900 islands. The reef is made up of over 400 different types of coral and is home to a vast array of marine life, including over 1,500 species of fish. The Great Barrier Reef is a popular tourist destination and is considered one of the seven natural wonders of the world.