The Bureau of Meteorology in Australia runs a photographic competition each year. The winning pictures go into a calendar, alongside their stories. Retired Bureau of Meteorology officer Ken Hayes travelled to the Perry Sandhills in New South Wales, in 2007. He was impressed by sand dunes rising 30 metres above the otherwise flat landscape. Ken says. “In the late afternoon, high-level cirrus in the west hinted at a really nice sunset, so I walked around for an hour to pick the right spot”

Credit : KEN HAYES