辽东半岛
Dalian is located on Korea Bay north of the Yellow Sea and roughly in the middle of the Liaodong peninsula at its narrowest neck or isthmus. With a coastline of , it governs the majority of the Liaodong Peninsula and about 260 surrounding islands and reefs. It is seated at south-south-west of the Yalu River, and its harbor entrance forms a sub-bay known as Dalian Bay.