The Lakes-to-Sea Highway, also known as the "Ship-to-Shore" highway, was an auto trail in the Northeast U.S., running from Erie, Pennsylvania (on Lake Erie) southeast via Harrisburg and Philadelphia to Atlantic City, New Jersey (on the Atlantic Ocean – the "sea"). The highway roughly followed the following present routes: * U.S. Route 19, Erie to Meadville * U.S. Route 322, Meadville to West Chester * Pennsylvania Route 3, West Chester to Philadelphia * U.S. Route 30, Philadelphia to Atlantic City It ran along the William Penn Highway between Water Street and Hershey.