The country known for having the world’s largest coral reef is Australia, specifically the Great Barrier Reef. This natural wonder spans over 2,300 kilometers along the Queensland coast and is home to an incredible diversity of marine life, including thousands of species of fish, corals, and other marine organisms. The Great Barrier Reef is not only a UNESCO World Heritage site, but also an important ecological and economic resource through tourism and fishing. Conservation efforts are crucial to protect this delicate ecosystem from threats like climate change and pollution.