In Philadelphia, families and history buffs are in luck. The Independence Seaport Museum ( 211 S. Columbus Blvd., 215.413.8655,
phillyseaport.org) offers guided tours of the Olympia, which was first launched in 1892 and is the oldest steel warship currently afloat in the world, and the Becuna, a submarine deployed during World War II, the Cold War, the Korean War and the Vietnam War. When hunger strikes, head over to Moshulu ( 401 S. Columbus Blvd., 215.923.2500, moshulu.com), where the world’s oldest and largest fourmasted tall ship does double duty as a bar and restaurant. Across the way in nearby Camden, New Jersey, Battleship New Jersey ( 62 Battleship Place, Camden, New Jersey, 856.966.1652, battleshipnewjersey.org), which was helmed by Admiral “Bull” Halsey and remains America’s most decorated warship, also gives a glimpse into the area’s naval history. Beyond historic ships, families with kids in tow have two more popular spots on the banks of the Delaware River to explore. At Blue Cross RiverRink Summerfest ( 101 N. Columbus Blvd., 215.925-RINK, delawareriver waterfront.com), visitors enjoy carnival games, an urban beach, a boathouse-style lodge, a mini golf course, an outdoor roller rink and a 60-foot-tall Ferris wheel with seemingly endless views. Spruce Street Harbor Park ( Columbus Blvd. and Spruce St., 215.922.2386, delawareriverwaterfront.com), located just down the road, is a hammock-laden hamlet complete with boardwalk-style games, a beer garden, an overwater net lounge and bites from some of the city’s best-loved eateries, including Franklin Fountain, Chickie’s and Pete’s and Distrito.