Premium cruise passengers have their sights set on the Caribbean this summer, with Royal Caribbean's
Perfect Day at CocoCay private island destination and Nassau in the Bahamas being the most popular ports. Cozumel, Mexico rounds out the top three.
Luxury travelers, meanwhile, are interested in Alaska, with Ketchikan, Sitka and Juneau being the most popular ports to visit.
River cruisers want to experience Europe, specifically the ports of Vienna, Budapest and Passau in Germany.