AAAAAAAAAARRRRRGGGGGH you having a partay?
is there a diving boooarrrrrrd at yer pool? if so, make yer cabinboys walk the plank.
if not, use a plank
Pin the X on the treasure
treasure hunt &/or scavenger hunt
How childish do you want to be?
We buried treasure in a box of sand and had the kids dig it out with plastic forks taped to chopsticks (to make them longer) ....but the twist was that it was teams of two -one person was the eyes (hands on hips) and the other was the hands (behind the "eyes", hands throught the loops of the "eye's" arms, can't see what they're dealing with)
It would be a good drunken adults game
Bob for apples or rum-filled chocolates
...I can come up with more if you want....