What are fun things to do over the summer?

Well, i can't drive and i'm home with my sister most of the time. And sitting around doing nothing is just boring to me. I would like something to do, that doesn't involve driving or going anywhere. I just need something to do other than creep people on facebook all the time, haha jk i don't do that. But ya i just can't be on facebook all the time or watch tv all the time, so i need something to do. And i like in Kansas so its hot.