Presque Isle State Park is a 3,112-acre Pennsylvania state park on an arching, sandy peninsula that juts into Lake Erie, 4 miles west of the city of Erie, in Millcreek Township, Erie County, Pennsylvania, in the United States. The peninsula sweeps northeastward, surrounding Presque Isle Bay along the park's southern coast. It has 13 miles of roads, 21 miles of recreational trails, 13 beaches for swimming, and a marina.