While passengers onboard will vary based on itinerary and time of year, Serenade of the Seas has captured a wide ranging passenger demographic (older in non-school holiday periods, more families during winter and summer holidays). The ship's appeal is, like its other Radiance class counterparts, is its size. It's new enough to feature contemporary amenities (like balconies and alternative restaurants) and yet -- not so huge as Voyager class vessels.

The dress code onboard is cruise casual - you'll see some jeans onboard after shore excursions or in the casinos later at night, but khakis and capris are fairly standard attire. Expect a formal night and at least one "smart casual" dinner, which means business formal, thought not quite black tie (think dress slacks and nice sweaters). Only a handful of men wore tuxedos on formal night, and the majority of women passed on the full-length gowns in favor of shorter cocktail dresses.

Royal Caribbean passengers are charged $14.50 per person, per day ($17.50 for suite guests). Gratuities can be prepaid or will be added on a daily basis to passengers' SeaPass accounts during the cruise. Passengers can modify or remove gratuities by visiting the guest services desk while onboard. An 18 percent gratuity is automatically added to bar tabs.