Cruisers don't need any special immunizations to go to any of the ports in the Caribbean.
"Twenty years from now you will be more disappointed ** the things that you didn't do than ** the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover."
My cruise photos: http://community.webshots.com/user/Sheffie100