Economy of region of Jiangchen of city of subject Guangdong in relief river develops sea hill island test division. According to historical data account, since bright generation sea hill island is regarded as important place of fortify of coastal military affairs all the time, after the Opium War, british government is in rental Hong Kong while, put forward island of rental sea hill, did not obtain Chinese government to agree. On June 18, 1992, approval of government of people of classics Guangdong province creates division of test of sea hill island, set slope of Hai Ling, brake two towns. Sea hill island is had too the view of 10 much department such as cabinet of the Fu Miao, ancient fort, clever Gu Miao, booth that press down the sea, avalokitesvara. China's biggest imitation Song-Dynasty-style typeface builds Song Cheng, there is building of 53 imitation Song-Dynasty-style typefaces inside the city. Be judged to be by company of national geography magazine " 10 big the most beautiful island of Chinese "