We are planning to go on a Western Carribean Cruise (DIsney Magic) around May and wonder if what your thoughts are on immunizations for kids going out of country? I have seen on these boards that many people bring little ones along. Ours will be about 7 months by that time and have had some but not all shots. Are there any legal requirements for going out of country/coming back to the US that kids be immunized. And are the cruise destinations (Grand Cayman, Cozumel) relatively safe for little ones as far as diseases related to these immunizations are concerned?