Annue,
I would say, Triton's, you would want church outfits.. men in nice slacks and button-down, a tie a good touch. A girl in nice slacks and blouse, or a nice dress. Kids, I would say, just nice pants and a shirt would be fine for a young boy, and a nice dress for a young girl. Palo's is the same as Tritons.
The rest of the evenings, I say, khakis and polo's is fine for guys, and the same for girls, or a simple dress/slacks and blouse. The other restaurants are more casual then Triton's or Palo.
My rule of thumb is no jeans/shorts/t-shirts.. and you will feel comfortable and will blend right in, since there is a wide variety of attire worn on the 4 day. Some people get all decked out, others just show up casual.
It's a balance of what you feel comfortable in and want to wear, and what would be respectful to your shipmates. I wouldn't worry too much... if you use the no jeans/shorts/t-shirts rule, you'll be fine
