Everyone forms into teams, and stand as far apart as possible. One person from each team is chosen to be it, they goto the other team and are blindfolded, then handed a water. They are spun around and around. When told to start they have to listen for instructions from their team where the other player is. They have to shoot their water pistols, they can"t spray the water wildly. If they do they loose. Their team has to direct them to the other player, the first to shoot the other player wins.
Source: From the original site.