Sponge Throw

One water game that I liked was a sponge toss game. A full bucket on one side, an empty bucket on the other side. People work in pairs. The person next to the water bucket has two sponges. (Big sponges are best.) They fill a sponge with water and then toss it to the person at the other bucket who squeezes the water into the empty bucket and tosses it back. Having two sponges per team increases the complexity, but also makes it more likely people will get wet. :)