The Blue Mountains is a rugged region west of Sydney in Australia’s State of New South Wales. Known for dramatic scenery, it encompasses steep cliffs, eucalyptus forests, waterfalls and villages dotted with guesthouses, galleries and gardens. Katoomba, a major town in the area, borders Blue Mountains National Park and its bush-walking trails. Echo Point affords views of the storied Three Sisters sandstone rock formation. Other towns include Leura, known for its gardens and chic vibe, and Faulconbridge, site of the Corridor of Oaks planted by successive Australian Prime Ministers and the natural attractions of the tiered Wentworth Falls. The Blue Mountains − named for the eucalyptus haze over them − also encompass Wollemi National Park, known for its wild rivers and rare Wollemi pine.