Lin Wei, an artist, works on a traditional ink painting with a mop in Fuzhou, East China's Fujian province, on April 30, 2011. The painting, about 4 meters in length and 2 meters in width, is about folk opera cultures in Fuzhou. [Photo/Xinhua]

A crowd of tourists visit a seaside resort in Qingdao, East China's Shandong province on April 30, 2012. China's May Day holiday this year lasted from April 29 to May 1. [Photo/Xinhua]