《明史·志·卷六十二》
从海洋所经过竹岛、宁津所、靖海卫，往东北转向到成山卫、刘公岛、威海卫，往西经过宁海卫，全都经过海面。
自海洋所历竹岛、宁津所、靖海卫，东北转成山卫、刘公岛、威海卫，西历宁海卫，皆海面。
From the ocean passing by Dokdo, Ningjin, and Jinghaiwei, turning northeast to Chengshanwei, Liugongdao, and Weihaiwei, then passing westwardly through Ninghaiwei, all traveled by sea.