(130605) -- WEISHAN, June 5, 2013 (Xinhua) -- Pupils board Weixi Primary School, an aquatic school sitted on a boat by the Weishan Lake, at Gaolou Township of Weishan County, east China's Shandong Province, June 4, 2013. 34 pupils get to school by boat everyday and receive education wearing life vests, under the guidance of Wang Sheng'an and his wife Cao Guiying, the only two teachers who have been working at the school since 1977. Weishan lake, covering an area of 1266 square kilometers, is the biggest lake in Shandong. (Xinhua/Zhu Zheng) (wqq)