Twice every year the Qiantang Tidal bore thunders down the river from the Hangzhou Bay almost 30 miles past the city of Hangzhou. Since 2007 Surfing China and Wabsono, with the permission of the Chinese government, has invited Pro surfers to surf the bore known as the "Silver Dragon". This year the team included Jamie Sterling, Mikala Jones, Robert Wingnut Weaver and Mary Osborne.