Australia

The Great Barrier Reef is the The Great Barrier Reef is the world's largest coral reef system,world's largest coral reef system,composed of over 2,900 individual composed of over 2,900 individual reefs and 900 islands stretching reefs and 900 islands stretching

for 2,600 kilometres over an area for 2,600 kilometres over an area of approximately 344,400 square of approximately 344,400 square

kilometres.kilometres.The reef is located in the Coral The reef is located in the Coral

Sea,Sea,off the coast of Queensland in off the coast of Queensland in

northeast Australia.northeast Australia.