At weekends and holidays, tourists trek from one to another of Shihmen's "Eight Sights," and pleasure craft criss-cross the surface of the lake. The reservoir is the source of mains water for Taipei County, Taoyuan County and City and parts of Hsinchu County.
假日，石門八景遊客流連，湖面遊艇穿梭，水庫更是台北縣、桃園縣市與新竹部份地區的用水來源。