It's Jaws revisited, but this time the sharks are full of hot air. Players slip and splash all over the wading pool as they attempt to defy the laws of buoyancy. Adult supervision required.
Soak-O-Meter: DRENCHED
Popped balloons are a choking hazard; discard the pieces promptly.

Blow up a dozen or so balloons and draw shark faces on them with permanent markers.
Fill the kiddie pool with water, add the balloons, and watch the game begin as the children try to sit on the balloons and pop them
The player who squashes the most sharks wins. However, keeping score may fall by the wayside as the sittin', slippin', and slidin' get into full gear.