Presque Isle State Park is a  Pennsylvania state park on an arching, sandy peninsula that juts into Lake Erie, 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 of roads, of recreational trails, 13 beaches for swimming, and a marina. Popular activities at the park include swimming, boating, hiking, biking, and birdwatching.