Changxing Island located at China Liaodong Peninsula mid-west, west side Dalian Wafangdian, four sides link Bohai Sea, an only bridge and the land is connected. The entire island area 252.5 square kilometers, are north of Yangtze River the first Oshima, the Chinese fifth Oshima, the population 5 ten thousand people. The entire island thing long 30 kilometers, the north and south extend 11 kilometers, the rotary island waterfront 91.6 kilometers, respective sea area 100 square kilometers, shallow seas and tidelands 1500 hectares. On the island the topography assumes the hill landform characteristic, the west is high, eastern part is low, average elevation 55 meters, highest mountain peak Tashan 328.7 meters. Changxing Island is the warm temperate zone moist continental monsoon climatic region, temperate moist, the four seasons are distinct. Annual average temperature 10 ℃, average wind velocity 4.5 meters/seconds, frost-free period about 180 days, about annual rainfall 600 millimeters, sunshine rate 60%, relative humidity 67.5%, yearly average foggy day 18.3 days (visibility <= 1000 meters). three, geographical position Changxing Island borders on Bohai Sea, has the development marine economy, moves toward the international market the special geographical position. East is connected with a mainland only bridge, is apart from the shore 358 meters, east is apart from the Shen greatly highway pass to store the access 29.6 kilometers, south is apart from the Dalian Zhou Shuizi international airport 120 kilometers, the northing provincial capital Shenyang 312.6 kilometers, west and Qinhuangdao, Beidaihe face each other across the sea, are apart from the South Korean Inchon port 339 nautical miles, the Japanese Nagasaki port 646 nautical miles