The Great Barrier Reef is located in Australia, which is part of the continent of Oceania. This natural wonder is renowned as the largest coral reef system in the world, stretching over 2,300 kilometers along the Queensland coast. It is a UNESCO World Heritage site and home to an incredible diversity of marine life, including thousands of species of fish, coral, and other marine organisms. The reef's vast ecosystems attract tourists from around the globe, playing a significant role in Australia's tourism industry. However, it faces numerous threats from climate change, pollution, and overfishing, highlighting the need for conservation efforts.