I want to do something fun. Mostly I just want to hang out with people I like. Last year my choice of location was nearly disastrous, and it was mostly luck that I even met the other people who showed up. A lot of people couldn't come for various reasons.
I'm looking for ideas for where to meet, and when so that I can hang out with a lot of my friends. It doesn't have to be exactly on my birthday, but Saturday the 19th might be problematic since I am going to a wedding, or maybe it is just the reception at the beach in the afternoon. Preferably really cheap, or free since a lot of people didn't come last year because of cost. Preferably also under 21, because I don't want to leave out the few people here who are still 20.
Any help would be appreciated because I am terrible at planning events.