Australia is the country renowned for the Great Barrier Reef, the world's largest coral reef system. Stretching over 2,300 kilometers (1,430 miles) along the Queensland coast, it comprises more than 2,900 individual reefs and 900 islands. The reef is a UNESCO World Heritage site and is known for its vibrant marine biodiversity, hosting various species of fish, corals, and other marine organisms. The Great Barrier Reef plays a vital role in the ecosystem, contributing to tourism and providing economic benefits while also being an important focus for conservation efforts against climate change and pollution.