Forty-foot river boat ferries partiers to bars or takes families to an island to search for treasure

Instructors take students out onto the waters of Havre de Grace harbor for a hands-on introductory sailing lesson

Boats ride up alongside playful dolphins and graceful whales for up-close viewing, and a guide points out marine life and historical sites

Aboard cruise ship, guests enjoy scenic views of Philadelphia's historic skyline, dinner & live entertainment

Speedboat tour accommodates up to 108 and includes info on Tide Point, the USS Torsk, and Canton while journeying to Key Bridge and back

Cruises replete with live entertainment drift along the Hudson, enabling guests to hit the dance floor & take in views of the skyline

Boats ride up alongside playful dolphins and graceful whales for up-close viewing as guide points out marine life

Narrated tour of Philadelphia harbor on modern, three-deck yacht departs Sundays at 1 p.m., through September

Kayak rentals embark from shores of Marsh Creek Lake, and bikers strap on supplied helmets to tour Valley Forge National Historical Park

Charter boats with sundeck and restrooms furnish anglers with rods and reels as well as complimentary bait, fish bags, and instructions