barrier reef

great barrier reef: world's largest coral reef system


The great barrier reef is the world’s largest individual formation created by living organisms. As the largest coral reef in the world, the Great Barrier Reef includes over 900 islands, over 2,900 separate reefs, and supports one of the most diverse ecosystems in the world.

quick facts

  • Largest coral reef system in the world
  • Consists of over 2,900 separate reefs
  • Stretches over 1,600 miles (2,600 km)
  • Can be seen from outer space
    The 133,000 square miles (344,000 km) includes 900 islands


The Great Barrier Reef is possible the grandest natural wonder in the world and is the only wonder of nature that may be visible recognized from outer space. The reef stretches 1,600 miles (2,600 km) along the north eastern coast of Australia and it covers over 133,000 square miles (344,000 sq km).

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