Great Barrier Reef

Great Barrier Reef
AUSTRALIA, PAPUA NEW GUINEA
New7Wonders of Nature

The Great Barrier Reef is the planet’s largest coral reef system, with some 3,000 individual reefs and 900 islands stretching for 2,600 km over an area of approximately 344,400 square km. It is the biggest single structure made by living creatures and can be seen from outer space.