NEW YORK (AP) - There's the usual razzle-dazzle - laser tag, water slides, zip lines and massive LED screens - along with a continued emphasis on healthy lifestyles, from dining options to fitness.
New ships offer more outdoor spaces and views of the sea, with boardwalk-style decks, glass walls and observation areas.
Alaska is very popular, along with itineraries on smaller ships to other cold-water destinations like Iceland, Greenland and the polar regions.
Millennials are a factor, too. Royal Caribbean says shorter cruises are popular with 20-somethings. In Europe, U by Uniworld river cruises are for ages 21-45 only.
The Cruise Lines International Association says "skip-gen" cruising is a new phenomenon, when grandparents cruise with grandkids, but skip a generation by leaving mom and dad home.