Esteeming bright island is the 3rd big island of our country, it is the alluvial islands of delta of the Yangtse River, area 1200.68 square kilometer, population is made an appointment with eight hundred and twenty-one thousand five hundred, already had 1300 old histories, be known as " portal of the Yangtse River, the East China Sea seas continent " . Chong Ming island belongs to Shanghai, the canton on the island is Chong Ming area, but fraction belongs to Jiangsu province, that is Nantong city the town that open grand and Hai Yongzhen, be located in north of Chong Ming island to carry, as a result of,bright island is esteemed in people impression before the cause of Chong Ming county, think Chong Ming island belongs to Shanghai, this is incorrect. Esteem evenness of bright island relief, average height above sea level is less than 5 meters, land is fecund, forest exuberance, products is abundant, it is famous an abundant place. Have on the island east beach migrant groove guard, on the west the tourist attraction such as park of forest of country of sanded wet ground, Dong Ping. Long-term since, the development that esteems bright island and Shanghai still have very big difference, already big bridge is linked together now, chong Ming county also should be Chong Ming area, the life that esteems bright island dweller also blends in the life rhythm of big Shanghai slowly. Because esteem bright island to be piled up continuously by silt of the Yangtse River, add land of 5 square kilometer every year, after predicting to be in 50 years, mix border on of northern part land.