Britain's Prince William and Kate, the Duchess of Cambridge, with son Prince George, stand atop of the stairs and wave good bye as they board their flight in Canberra, Australia, Friday, April 25, 2014. The Duke and Duchess concluded their three week state visit by attending the Anzac Day dawn service and parade, laying a wreath and planting a Lone Pine tree before departing for London with son Prince George.(AP Photo/Rob Griffith)