Not far beneath the surface of the Coral Sea, where the Great Barrier Reef ... ocean swell. The reef's sheer diversity is part of what makes it great. It hosts 5,000 types of mollusks, 1,800 ...

The Great Barrier Reef is an expansive wonder filled with thousands of marine species and over 600 coral types. It's naturally priceless. But think of it as a business, or prime piece of real ...

The Great Barrier Reef is the world's largest and most diverse reef ecosystem and is home to 400 types of coral ... of the reef by controlling seaweed growth and producing sand.