INITATIONS: they can either be on a flip flop with the info written in sharpie or on a beach ball with sharpie that can be blown up to use at the party. ACTIVITIES: there can be many things to do like swimming, volleyball, dancing, bonfire, roasting marshmallows, barbeque, bury each other in sand, beach relays, and flashlight tag. FOOD: Barbeque things like hot dogs, burgers, and buns. Salad and potato salad. Other picnic type foods. Of course a cake that has a beacxh theme frosting on it. or cupcakes. also roast marshmallows if you can. washed seashells on cake for decoration. DECORATIONS: not much is needed of you are at a beach and you dont want to use a lot of streamers that can get ruined and pollute the water. stay simple with this stuff, maybe like fresh flowers, grass skirt around table, banner, palm tree cooler, tiki torches, lay towels out and dont forget sunscreen, also have beach balls and sand pails and other snad toys. GOODIE BAGS: sunglasses, flower leis, and flip flops, also a beach ball