Britain's Prince William greets a dog trained for rescue work during a fell walk in Cumbria's Lake district, England accompanied by a group of young people helped by the charity Centrepoint and volunteers from the Mountain Rescue service Friday July 24, 2009. Prince William is a patron of Centrepoint, a charity for young homeless people and of the Mountain Rescue in England and Wales. They also raised a London 2012 flag to mark three years until the start of the Olympics. (AP Photo/John Giles, Pool)