What to do on a 15 hour bus ride to IN...HELP?

Hey, y'all!!! I'm going on a 15 hour bus ride to Indianpolis, IN. And im goin to have my BFF with me, and we are just wonder what we could do all the way up there, and all the back home. Like we need some song sugguestions(we listen to anything) and stuff like that. I've been to IN before, I went with my FFA chapter for the 83rd National FFA convention but we flew. So, we just need some fun stuff to do. Thanks!!!!