辽东湾
Shanhai Pass or Shanhaiguan () is one of the major passes in the Great Wall of China, being the easternmost stronghold along the Ming Great Wall, and commands the narrowest choke point in the Liaoxi Corridor. It is located in Shanhaiguan District, Qinhuangdao, Hebei province, on the east bank of the Shi River between the Yan Mountains and the Liaodong Bay coast.