Alrighty i need some help!...please!?

wat could i do for a going away/ birthday party???..is that even a good mix?...going away and b day party??...idk please help on wat i could do for fun...where i could go...wat we could eat!..i have no clue!...ill be turning 15 years old..and everyone there will be about 13-15 years old....and there will be about 15 people!...thx in advance!..