Don't forget beer.
Disposable camera since you'll prob wind up losin it-we always do.
Water shoes-it's pretty nasty in some parts, or maybe all parts!
Some good food-not just munchies.
Lots of beer for you and all them hott chicks-and your alky buds ya brought with ya that will drink yours!
Waterproof pouch for walkin to the island with smokes.
Sunglasses so you don't have to be obvious when takin in the views!