The Great Barrier Reef The Great Barrier Reef is the biggest group of coral reefs in the world. It stretches along the coast on the north-east part of Australia. It is called the Great Barrier Reef because it creates a barrier between the Pacific Ocean and the coast. The Great Barrier Reef is a scattering of thousands of individual reefs. The reefs is on the World Heritage List made by UNESCO, because of its size …
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…land was covered by the rising sea, a number of mountain ranges were cut of from the main land to become continental islands. There are 616 islands in the reef region. Climate The climate of the Great Barrier Reef varies. In the north there is tropical conditions and high humidity and a wet season around January. In the south it is cooler, subtropical to temperate conditions. The water temperature in the south seldom falls below 20 C.