January is the time for a nice warm Caribbean or Bahamas cruise out of Miami. For example, you can take an 8-night Southern Caribbean cruise on the Carnival Breeze. Visit Grand Turk, the Dominican Republic, Curacao, and Aruba. Departs January 4, 2014.
Or get onboard a 7-night Eastern Caribbean cruise on the huge Norwegian Epic. Ports of call include the islands of St Maarten, St Thomas, and Nassau (Bahamas). Depart January 11, 2014.
Or consider the comfort of a 7-night Eastern Caribbean cruise on the fancy Celebrity Reflection. Departing January 25, 2014, it goes to Puerto Rico, St Thomas, and St Maarten.