What to pack for a Florida beach trip?

[mapg]

We are going to Florida next week with my sister's family. What clothes should I pack for my almost three year old? Or should I not worry about a lot and buy what I need when I get there? Any tips would be appreciated. We are going to the Destin area, if that matters. Thanks.
MA

[Mommy_Again]

I suggest as little clothes as possible. Florida is HOT in the summer! Loose, breathable fabrics.