The Walls of China are a feature of the Mungo Lake lunette, in the Mungo National Park South West New South Wales, Australia. Over thousands of years, wind and water have carved spectacular formations comprised of sand and clay. Rain washes away the soft sands and muds of the lunette, creating the rilled ridges and residuals that characterise the Walls of China. The dislodged sand is then picked up by the wind and heaped into huge mobile dunes along the back of the lunette. Read more about this amazing place here: http://tinyurl.com/zc823 (Mungo National Park web site)
This timelapse was taken at dawn 30th August 2006.