Houhai (Chinese: 后海; pinyin: hòuhǎi; literally "Rear Sea") refers to a lake and its surrounding neighborhood in Xicheng District of central Beijing. Houhai is the largest of the three lakes, along with Qianhai (lit. the "Front Sea") and Xihai (lit. the "Western Sea"), that comprise Shichahai, the collective name for the three northern-most lakes in central Beijing. Since the early 2000s, the hutong neighborhood around Houhai has become known for its nightlife as many residences along the lake shore have been converted into restaurants, bars, and cafes. The area is especially popular with foreign tourists visiting Beijing and is also often visited by the expatriate community and the younger generations of locals.
Beijing Bus routes 5, 60, 90, 107 and 204 stop at the Drum Tower, just east of Houhai. The nearest subway station at Beihai North on Line 6 is about half a kilometer west of Qianhai. To reach Houhai, subway riders must walk north along the shore of Qianhai to Houhai.