What is the largest reef system in the world?

The Great Barrier Reef is the largest reef system in the world. Located off the coast of Queensland, Australia, it stretches over 2,300 kilometers and covers an area of approximately 344,400 square kilometers. The Great Barrier Reef is home to an incredible diversity of marine life, including more than 1,500 species of fish and 600 types of coral. It is also an important breeding ground for sea turtles and serves as a habitat for several endangered species, such as the dugong and the large green turtle.

The Great Barrier Reef is not only a natural wonder, but it also plays a significant role in the region's economy, supporting industries such as fishing and tourism. It is estimated that the Great Barrier Reef generates billions of dollars in tourism revenue each year, with millions of people visiting the reef to experience its natural beauty and biodiversity.