Watch fireworks flare on the Patuxent River from a watery vantage aboard theWm. B. Tennison. No children under 7. 8pm from Calvert Marine Museum, Solomons. $37; rsvp: 410-326-2042; www.calvertmarinemuseum.com.
Take an Independence Day Cruise with Watermark Cruises. A DJ keeps you dancing before Charm City’s fireworks display. 7:30pm from Baltimore Finger Piers, Baltimore. $59 w/age discounts; rsvp: