My only Christmas cruise (thus far) many years ago (1994) was also the most memorable cruise I’ve ever been on.    I joined my parents for a 2-week Caribbean cruise aboard a moderate -size (at the time) 800 passenger ship that departed Fort Lauderdale a day or two before Christmas. .  The ship had just completed refurbishment after serving as a floating hotel in St. Petersburg, Russia and this was its inaugural post-refurbishment voyage - and the inaugural voyage for the crew.