Birthday Party Ideas?

My 18th birthday is... The 29th. Which is a Friday. Which gives me a bit less than two weeks to devise a party. xD It can't be big or extravagant. My 16th was going to get sushi (and the vast majority of my family didn't even show up- just my parents, step mom's kids, sister, and Vincent showed xD) and my 17th was going to a nearby zoo. My sister's 13th was spent going to California and going to San Diego Zoo, but I don't have those cool luxuries. D8 But oh well~ That's the economy for ya!<br><br>Either way, I need something fun/interesting to do, something that the elderly can do too (I was at first considering rock climbing/hiking or something, even though I've done that for two of my birthdays).<br><br>Things in the past:<br>Trail riding (twice, both times weren't eventful, and Vincent finds it utterly boring as he lives on a ranch, and grew up trail riding/barrel racing/cutting/calf roping/etc)<br>Pizza places (IE: Peter Piper)<br>Dinner at a resteraunt<br>Hiking (trails and mountains)<br>Zoos (oh god zoos. ._.)<br>Mini-golf<br><br>I'm thinking of going to a small amusement park-type thing here, as we don't really have FUN stuff to do, like in Cali. ._. But that weekend's going to be packed as they're having some lame band thing. Bah.<br><br>Any ideas?