For my friends little sister's Pool Party they had invited quite a lot of boys and girls (the whole class). So one parent took all the boys to play games outside and the Sony etc. And another
parent took the girls to use the pool for water games and races. In a couple of hours they swapped, the girls played the Sony and the boys played water games in the pool. At the end before
the cutting of the cake, someone tied a piņata to the cover of the pool and you had to jump and hit it before landing in the pool, I suggest only put lollies with wrappers on it, no Smarties,
Skittles or M&M's because they had a rainbow pool after that activity.