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荣成市地处胶东半岛最东端,三面环海,海岸线长487km,占山东省海岸线总长的1/6。海涂面积广阔,全市拥有可利用的滩涂面积3667hm~2(5.5万亩),20 m等深线以内的浅海水域面积13.3万hm~2(200万亩),其中包括沿海10个较大的海湾(桑沟湾、爱伦湾、俚岛湾、荣成湾、石岛湾、黑泥湾、王家湾、龙眼湾、马栏湾、临洛湾)2万多公顷(30多万亩)和近岸50个大小岛屿的
Rongcheng City is located in the eastern end of Jiaodong Peninsula, surrounded by the sea on three sides, the coastline 487km long, accounting for Shandong Province coastline total length 1/6. The sea area is vast with 3667 hm2 ~ 55000 hm2 of usable beach area and 133,000 hm2 (200 聽 hm2) of shallow sea area within 20 m isobath, including 10 large bays along the coast More than 20,000 hectares (over 300,000 mu) and near (Sanggyo Bay, Ellen Bay, Slang Island Bay, Rongcheng Bay, Shidao Bay, Black mud Bay, Wangjiawan, Longyan Bay, Malan Bay and Linluo Bay) 50 islands of the island