The famous barrier reef located in Australia is the Great Barrier Reef. Stretching over 2,300 kilometers along the Queensland coast, it is the world's largest coral reef system and is composed of over 2,900 individual reefs and 900 islands. This UNESCO World Heritage Site is renowned for its biodiversity, featuring numerous marine species, including fish, coral, and sea turtles. The Great Barrier Reef is a popular destination for tourism, snorkeling, and diving, but it faces environmental threats such as climate change and pollution, leading to efforts for its conservation.