"in a party"

Well, it depends on your usual style. If you're the type of girl who always wear dresses, then wear a beach dress and wear your bikini underneath so that you're ready to go all the time. If you're not really much of a dressy person, I say wear denim shorts and a cute top or your bikini top if you're daring. It all depends on what you're comfortable with anyway. Beach parties are pretty easy because you can just wear a sundress or even if you're just wearing shorts it would still look good, just accessorize it a bit. Don't overdo it though, 'cause you'd look like you're trying to get attention.

a beach party should be dressy casual. like nice shorts and a shirt or a cute sundress. that is what i would wear anyways.

you can wear either a dress or shorts for a beach party.you can wear a nice sundress and wedge shoes for a girly look.you can wear a tank top,capri pants,and flat shoes for a laid back look.you can wear a mini skirt with a cute shirt for a preppy look. it will depend on what is your mood for that party.

Well, if you are a guy, you can wear those flip flops for your foot wear. Then you can wear a white cotton polo or flowery polos and a white cotton pants or long shorts. For the girls, they can also wear those, with a choice of shorts, capri or pants for the bottom. Or you can wear those flowing , flowery , tank type or spaghetti type of dresses, whether it's up to the ankle or knee length. You can also wear a nice wide brimmed hat to compliment the whole look. Don't forget your sunglasses and put sunblock too.

If I were you I would like to dress something in between. Maybe a nice white beach dress. Complement with wood jewelery. Very chic and appropriate. Trust me, I come from a tropical island ;)

just wear a floral dress, more beautiful if it's a tube and very long dress. :)