Sheer cliffs dropping into deep canyons and glorious eucalyptus forests make the Blue Mountains National Park to have some of the most spectacular landscape to be seen in Australia. The famous photogenic Three Sisters sandstone pillars can be viewed from the famous Echo Point lookout, or inside the Katoomba Scenic Skyway cable car, installed in 1958 and is still is the only passenger carrying horizontal ropeway in the southern hemisphere. The Blue Mountains, another of Australia�s World Heritage listed site, are not really mountains, but a vast sandstone tableland, deeply incised by watercourses such as the Nepean and Cox rivers. The �blue� haze colour comes from the vaporous emanation from the leaves of thousands of eucalyptus trees. Nevertheless, kindly do not expect the moon to be blue here all the time.