Barrier reef
Barrier reef may refer to:
  • a kind of coral reef
    Coral reef
    Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny living animals found in marine waters that contain few nutrients. Most coral reefs are built from stony corals, which in turn consist of polyps that cluster in groups. The polyps...

  • the Great Barrier Reef
    Great Barrier Reef
    The Great Barrier Reef is the world'slargest reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,600 kilometres over an area of approximately...

     in Australia
  • the Mesoamerican Barrier Reef System
    Mesoamerican Barrier Reef System
    The Mesoamerican Barrier Reef System stretches over 1000 km from Isla Contoy at the tip of the Yucatán Peninsula down to the Bay Islands of Honduras...

  • the Belize Barrier Reef
    Belize Barrier Reef
    The Belize Barrier Reef is a series of coral reefs straddling the coast of Belize, roughly offshore in the north and in the south within the country limits...

  • the New Caledonia Barrier Reef
    New Caledonia Barrier Reef
    The New Caledonia Barrier Reef is located in New Caledonia in the South Pacific, and is the second-longest double-barrier coral reef in the world, after Australia's Great Barrier Reef....

  • Barrier Reef (TV series), an Australian television series
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