Looking at taking a Disney cruise next year with wife and son, who will be 8. I went on the Wonder many years ago as a teenager but this would be their first ever cruise. My wife is a little bit leery of the thought but willing to give it a try. My son says he is terrified of the boat. The activities look fun he says but the boat and ocean is scary to him. Any tips from folks who have been with kids and how to ease them into a cruise?