1, China's youngest city, held water 2012. 2, the ground level city with Chinese the biggest gross area. The islands land area that 3 sanded city involve is not large, maritime space area is how old kilometer of 200 more than square. 3, the ground level town with Chinese terrestrial the smallest area. 4, the ground level city with Chinese least mouth. End in December 2013, 3 sanded city often live population 1443 people, hobo 2000 more than person. 5, oil gas resource stores the ground level city with maximum amount. 6, situation most ground level city of Na Duan. 7, the ground level city with the mainest sea route. 8, the marine museum that has to establish exclusively by the soldier. 9, have China most Na Duan's bank. 10, distance motherland mainland learns Lei Feng collective farthermostly.