Ideas for a 16th birthday??!?

ok so i am turninng 16 reall soon annd i have no ideaa onn whhat i am goingg to do an i was looking for iddeas other than throwing a PARTY because i dont want it to suckk like some parties i have gone to wheere no one goes and it ends up being a complete failiure so i was wondering if anyone had any ideas on something else to do that would be fun that you could do with around 15 people like go camping or some ideas like thhat that would be fun but not expensive....Thank youu :) i will appreciate if you answerr it withh good ideas :)