Pearl is a ship for all ages, which works well since it attracts people from across all generations and demographics. It's hard to nail down who wouldn't be on a Pearl cruise; the crowd runs young and old, from all states (and countries, for that matter) -- you name it. These diverse demographics are largely influenced by the many theme cruises the ship hosts. Fans of bands, celebrities and special groups featured onboard span interests and generations. The ship mostly sails shorter, Caribbean itineraries, opening it up to vacationers looking to squeeze in a warm long weekend.

Daytime: Norwegian's carefree attitude carries over to its dress code, which basically allows for anything. During the day, it's all casual, with swimsuits, shorts and T-shirts poolside and in ports.

Evening: At night, there's generally no formal dress code, though there's a no-shorts rule at some of the more upscale restaurants (Cagney's and Le Bistro, for example). Otherwise, khakis and Polo shirts are the norm for men in the evening, while women wear sundresses or blouses with capris, slacks or skirts. Norwegian doesn't have a true formal night, though passengers are encouraged to dress up for Norwegian's Night Out once per cruise. Few people actually don their fancy duds, but those who do wear suits (for men) or cocktail dresses (for women).

Not permitted: The only prohibitions are tank tops for men, flip-flops, baseball caps, ripped-up jeans and swimwear. These are permitted in the Garden Cafe, though cover-ups or shirts and shorts must be worn over swimsuits and bare feet are not allowed.

For more information, visit Cruise Line Dress Codes: Norwegian Cruise Line.