Like the other person said..people wore whatever. Most people dressed up for Triton's. But you can wear a nice pair of capris and a blouse. Some wore dressier, some more casual. One thing I found confusing was our last dinner was at Parrot Cay, but on the top of the Navigator it said Dress Up night. I didn't understand and wore a casual skirt and capris. Everything is pretty laid back. I like to dress up, but not in really formal type attire. My DH felt left out because he didn't have a tropical shirt to wear. It was our first cruise too. I'll get him a shirt for the next cruise. We over packed, bought too much and didn't sleep enough. I personally wouldn't do another 3 day. I'd do a 4 day or a 7 day. Too much packing and unpacking and packing and for us and the 2 kids (9 and 2) it was alot. But I am glad we tried the 3 day because that's all we could afford right now.