The worlds largest single structure made by living organisms, and visible from space, what is the name of the major tourist attraction off the coast of Queensland?
Great Barrier Reef Great Barrier Reef World Heritage Area The Great Barrier Reef Douglas Shoal Great barrier reef Great Detached Reef Great barrier reef history
douglas shoal great detached reef great barrier reef history great barrier reef great barrier reef world heritage area
great barrier reef
WikipediaEntity
Great Barrier Reef