Blue Mountains National Park is a vast region west of Sydney, Australia, and part of the Great Dividing Range. The Echo Point lookout, near the town of Katoomba, has panoramic views of Jamison Valley and the Three Sisters, a towering sandstone formation and sacred Aboriginal site. Trails lead through bushland, home to lyrebirds and crimson rosella parrots, to the Giant Stairway, which descends to Jamison Valley.