How Big Is The Great Barrier Reef?
How Big Is The Great Barrier Reef? Stretching for 1,429 miles over an area of approximately 133,000 square miles , the Great Barrier Reef is the largest coral reef system in the world. How long and wide is the GBR? LengthApproximately 2300 km (1300 miles). It begins near Papua New Guinea in the north, and