how about a murder mystery party game kit or scavenger hunt, for some examples see the related links below:
You can play board games
Charades?
Well if your are staying the night at the hotel I would say decorate pillow cases I did that for my 11th we all had a blast and signed each others pillow cases and maybe also watch movies or play board games and maybe hide and seek at night in your room :)
have a fashion for fun
You can spin the bottle or improvise. thank you
Hide the sausage?
You can play many games. Ask your child, if its a surprise party ask some friends what tjey think is a good game to .
its your cousin go to a hotel and do something there let then=m go swimming let a coupe kids stay at the hotel with you and the birthday girl or have a campout they could play hide and seek
Guess who With this guess who its like acting out u write down a famous persons name and people have to guess who u act out. :)
I would say dress up as Twilight characters and play as them.
listen to music. play games like bigger or better. watch movies. eat.
It depends on how old you and your friends are. At my brother's birthday party we had a bonfire, paintball competions, pool games, four-wheelers, and hiking though our woods.