Cruise out aboard the Aquarium’s cool new hybrid-electric research vessel for memorable encounters with fish, crabs, mollusks and other creatures brought up right out of Long Island Sound right before your eyes. Check website for specific dates. 21/2 hours. Passengers must be at least 42 inches tall. Under 18, must be accompanied by an adult. Cost: $29.95 ($24.95 for Aquarium members). Advance reservations strongly recommended; walk-up tickets sold, space permitting. Get tickets or more details at www.maritimeaquarium.org or call (203) 852-0700, ext. 2206.