We are bored and have nothing to do?

I am 13 (14 in July) and i have a twin sister (I'm a girl too). We are really bored! We don't have a trampoline or a pool, and there is NOTHING to do where we live. Seriously. It's like, the most boring place EVER. We are supposed to be practicing for volleyball next year (yeah right, like that's gonna happen. lol jk) but its too hot to do any exercising! There is a diner a couple blocks away but we don't know if they sell ice cream anymore cause its been bought and sold at least 5 times. Any ideas on what we can do??