Beach or whatever is cool in your area. Be tourist for the day Spend with loved ones (give parents or whoever raised u a lil time ) be good, don't get arrested...and take pictures. You will look back at major events with. Wow. Pictures in your phone need 2 be printed.
On my 18th birthday my family was in St. Louis for my brother's baseball tournament, I was home alone and broke my ankle, I had 2 days alone with a broken ankle until they came back, that was the third year in a row that they have not been there and this year will be the fourth.