Penglai City is a port, a town in Yanyai （Shandong Province），Penglai has ranked as one of China's best domestic tourist destinations. The world famous Penglai Pavilion is seated on the hill of Danyashan close to the sea in the north of Penglai city. it is listed as one of the four famous pavilions in China together with Huanghelou Pavilion, Yueyanglou Pavilion and Tengwangge Pavilion. East of the pavilion is the Penglai water city, one of the oldest military harbors in ancient China, where there were facilities like dry docks, piers and emplacements, all against hills overlooking the sea. It is appointed together with Penglai Pavilion as key historic relics protected by the state. Under the Penglai Pavilion is the Penglai Water City built in the Ming Dynasty (1368-1644). It has two gates, namely, the south Zhenyang Gate, and the north Water Gate. Outside the north gate are two emplacements separately placed in the west and east. Water City is presently the most complete ancient military water base in China. In 1982 it was designated as a key national cultural relic along with the Penglai Pavilion.