Lake Piru is an artificial lake located in Los Padres National Forest of Ventura County, California, created by the construction in 1955 of the Santa Felicia Dam on Piru Creek which is a tributary of the Santa Clara River. The Lake Piru Recreation Area, along the western shore, has about 60 acres (24 ha) with various recreational facilities for camping, boating, fishing, swimming and picnicking. The 238 campsites have water and electric hookup along with a snack bar. There are 66 boat slips with a full-service marina.