In turning 13 next month & i decided since its summer to have a luau birthday party. So usually at the party's my friends have they just hang out in their backyard & talk. For my party it'll be a swim party at my house in the backyard so i want it to be really fun & in style. I need help with invitations, some decorations, like two games, & some food that's casual but still a little bit with the theme. It's an all girl party & im inviting about 30 guest & some of them i just met & im hopefully getting closer to them at this party so i need to make it fun. Please help!!!