I would think it would be pretty easy--the cruise line just sends some vaccine in, along with someone to do it. The crew on the ship to be home ported in SXM come June is going to be all vaccinated. The same is true with regard to ones being home ported in the Bahamas and the DR. I expect frankly that ALL cruise lines will be doing fully vaccinated crew. Makes sense to go ahead and do it now, to cut down on any sickness among the crew now.