The geographical area known as the Great Barrier Reef is located off the coast of Australia, primarily in the state of Queensland. This UNESCO World Heritage Site is the largest coral reef system in the world, encompassing over 2,300 individual reefs and 900 islands. The Great Barrier Reef is renowned for its incredible biodiversity, including a wide array of marine species such as corals, fish, and turtles. It is a significant attraction for tourism, contributing to Australia's economy and environmental awareness.