The Great Barrier Reef is located in the Coral Sea, off the coast of Queensland, Australia. It is the world’s largest coral reef system, spanning over 2,300 kilometers and containing thousands of individual reefs and islands. The Great Barrier Reef is renowned for its stunning biodiversity, including thousands of marine species like fish, coral, and mollusks. It faces significant environmental challenges due to climate change and pollution, making conservation efforts critical for preserving this natural wonder, which draws millions of visitors each year for snorkeling and diving.