Carnival Cruise Line has a fleet of two dozen ships that are big, affordable, and geared toward fun in the sun. These ships — whether they sail from Miami, Galveston, Norfolk, or New Orleans — are designed to appeal to a broad, regional American audience of all ages, but especially those who fantasize about a vacation that blends sand, surf, and cold drinks in the sun.  But are they right for you? Answer these questions to find out.