This picture taken on December 25, 2011 shows Facebook’s founder and billionaire Mark Zuckerberg (C) being greeted with flowers by two unidentified local tourist officials aboad a tourist boat before he and his girlfriend Priscilla Chan (not pictured) tour Ha Long Bay in northeastern province of Quuang Ninh. According to local media, they are travelling by helicopter from Hanoi to Ha Long Bay and then on to Sapa in northern Vietnam. AFP PHOTO /Gia Dinh Xa Hoi Newspaper (Photo credit should read Gia Dinh Xa Hoi/AFP/Getty Images)
