In this November 2010 photo, cruise boats make their way in Ha Long Bay near the Vietnam-China border in the Gulf of Tonkin. Early Thursday, Feb. 17, 2011, an overnight boat packed with sleeping tourists sank in the scenic bay, killing 12 foreigners, including vacationers from the United States, Australia and Britain, and their Vietnamese guide, officials said. (AP Photo/Kyodo News)

In this November 2010 photo, cruise boats make their way in Ha Long Bay near the Vietnam-China border in the Gulf of Tonkin. Early Thursday, Feb. 17, 2011, an overnight boat packed with sleeping tourists sank in the scenic bay, killing 12 foreigners, including vacationers from the United States, Australia and Britain, and their Vietnamese guide, officials said. (AP Photo/Kyodo News)