Located approximately 48kms west of Sydney, the Blue Mountains of New South Wales, Australia are a range of geological sandstone structures at least 1,150 metres high. The mountains were originally named by Arthur Phillip in 1788 as the Carmarthen Hills for the northern section near Sydney, and the Lansdowne Hills for the southern. However, Blue Mountains quickly became preferred as the popular name.
Although known by Indigenous Australians for thousands of years, the Blue Mountains were thought to be impenetrable by the early white settlers of Sydney, and were not crossed until convicts and other explorers found their way across. Why not explore the mountain range yourself with a professionally guided Blue Mountains Day Tour?
The Blue Mountains are not, as the name suggests, a range of mountains but rather a plateau with rugged eroded gorges of up to 760 metres depth. A large part of the Blue Mountains is incorporated in the Greater Blue Mountains Area World Heritage Site and its constituent seven national parks and a conservation reserve. The name is derived from the bluish tinge the range takes on, which is caused by a process known as Mie Scattering. Mie Scattering occurs when incoming ultraviolet radiation is scattered by particles within the atmosphere.
When Mie Scattering occurs incoming radiation lengths mix as no wave length is predominant over another creating a blue-greyish colour to any distant objects (such as mountain ranges or even clouds). It is widely believed that the blue colouring of the mountains is created by light reflecting off eucalypt leaves and although this is a romantic idea, unfortunately it is just folklore. The Blue Mountains were a familiar sight to early British settlers in the Sydney district long before the bulk of the continent was explored by non-native people. Today you can tour the breath taking Blue Mountains with our unique Blue Mountains Day Tours.