Cruising the end of Jan09. Me, DH and Ds(7), Ds(6). I am starting to pack and am not sure if we need warm cloths. I assume daytime is warm enough for shorts and swim suits. What is the temp at night? Would the kids be ok in shorts and maybe a sweatshirt or should I pack jeans. I understand the pirate night party is outside on the deck. That night the kids have costumes (long pant & shirt). But during the other nights do you spend a lot of time outside? and is it cold?