i would say definetely bring sweater or sweatshirt. i went on the cruise from 3/2- 3/9. Two nights at dinner i wore sleeveless and when i did that at Parrot Cay I had to go back to my room to get a sweatshirt. At night I preferred to wear pants and sometimes a sweatshirt because I was in the teen section and it waz sometimes cold in there. Also, because we had alot of dances so pants were kind of just what everyone was wearing to the teen dances. Any other questions ask!!