蓬莱水城, Cultural heritage site in Shandong, China.

Penglai Water City is a Ming-Qing coastal defence fortress on the east side of Danya Hill in Penglai, Shandong, also called Beiwo City. Its 270,000-square-metre area holds harbour works — water gate, breakwater, wave platform, dock, Zhenyang Gate and lighthouse — and defences: walls, enemy platforms, gun platforms, water sluices and a moat.

Penglai Water City was first built in 1376, the ninth year of the Ming Hongwu era, as an earthen fort. In 1596, the twenty-fourth year of Wanli, brick was laid over the earthen walls. The Ming general Qi Jiguang was once stationed here, and in 1982 the site was listed among the second batch of national key cultural relics protection units.

The site is also called Beiwo City (备倭城), a name tied to its role against Japanese pirates, and General Qi Jiguang was stationed here. The harbor works — water gate, breakwater, Pinglang Tai and dock — show how the garrison combined naval mooring with coastal defence.

The site lies east of Danya Hill in Penglai, reachable on foot from Penglai Pavilion. Visitors walk the walls and pass the water gate, breakwater, wave platform, dock, Zhenyang Gate and lighthouse; the moat and water locks sit among the defensive works. Allow time to cover the 270,000 square metres.

The site is also called Beiwo City ("anti-Japanese pirate city"), a name recalling its Ming-era role against Japanese raiders; General Qi Jiguang was once stationed here. The 270,000-square-metre complex pairs harbour works such as the water gate, breakwater and Pinglang platform with walls, enemy platforms, gun platforms and a moat.