Go up to a lake, maybe ? I'm not familiar with the north. Why not have a sleepover? Inexpensive, fits a tight schedule, and no travel hassle!

instead of having a huge sweet 16 I just wanna go away with 4 close friends but my parents planned an expensive summer vacation and my birthday is in June so it's tight. what's a good trip to go away in the united states or New York just for a weekend and that's fun to do for 16 year olds