The Great Barrier Reef is located off the coast of Queensland, Australia. This UNESCO World Heritage Site is the world’s largest coral reef system, stretching over 2,300 kilometers. It is renowned for its stunning marine biodiversity, including colorful coral formations, diverse fish species, and other marine life. The reef is a popular destination for activities like diving, snorkeling, and eco-tourism. However, it faces significant threats from climate change, pollution, and coral bleaching, prompting ongoing conservation initiatives to protect this vital ecosystem and its inhabitants.