Some giant cruise ships cater to spring breakers, others to the retired set. But Seabourn’s new ship, the Ovation, is in a class of its own. With space for just 600 passengers, the focus is squarely on luxury, above all else: guests can expect 24-hour room service, kayaking and sailing sojourns directly off the ship, as well as an onboard casino, plunge pool and nightclub. Members of the crew even went to a “gelato university” in northern Italy to perfect the flavors made and served onboard. Prices start at $3,500 for a seven-day journey through the Mediterranean. —Billy Perrigo