Walking @Blue Mountain

"The Greater Blue Mountains was inscribed on the World Heritage List in 2000 and was one of 15 World Heritage places included in the National Heritage List on 21 May 2007. The Blue Mountains is densely populated by oil bearing Eucalyptus trees. The atmosphere is filled with finely dispersed droplets of oil, which, in combination with dust particles and water vapour, scatter short-wave length rays of light which are predominantly blue in colour..."