The Greater Blue Mountains World Heritage Area is a protected region in New South Wales, Australia, recognized for its exceptional natural beauty and biodiversity. It covers over one million hectares and includes various ecosystems, such as eucalyptus forests, deep gorges, and unique rock formations. The area is home to many rare and endangered species, making it a vital conservation site. Designated as a UNESCO World Heritage Site in 2000, the Greater Blue Mountains showcases significant geological features, including the iconic Three Sisters rock formation. The region also offers numerous recreational opportunities, such as hiking, birdwatching, and exploring scenic lookouts, attracting visitors from around the world.