
Supplies could include:
- Water guns
- Water balloons
- Slip and slide (store bought or homemade)
- Sprinklers
- Kiddie pool
- Buckets
- Sponges
Activities could include:
- Water balloon volleyball: Put up a volleyball net and provide each team with a towel or sheet. Have them toss a water balloon back and forth from sheet to sheet until the balloon breaks, giving the other team a point.
- Water war: Split the group in two and provide each team with and ample supply of water guns and/or balloons and them them go at it
- Water capture the flag: Play normal capture the flag, but instead of tagging someone with your hand, tag them with a water balloon
- Fill the bottle: Split the group up into teams. Each team has a player lay on the ground on one end of the field and put a 20oz plastic pop bottle on their forehead. The other team players stand at the opposite end of the field with one 4oz cup and a bucket of water. When the whistle is blown, each team relays as one by one, the players fill up their 4oz cup, run down the field and try to pour it into the 20oz bottle on their teammate's forehead without bending down, and then run back to hand their cup off to the next teammate. The team that fills up the 20oz bottle first wins!
- Water balloon toss: Have every person choose a partner and give each pair one water balloon. Form two lines an arm's length apart, having each person standing opposite their partner. Instruct the participants to toss the water balloon to their partner. If the water balloon doesn't break, have them take one step back and toss the balloon again. The pair that throws and catches their water balloon over the farthest distance without breaking it wins.
- Sponge Relay: Split the group up into teams of 4-15 players. Have each team stand in a single file line with one bucket full of water and sponges in front of the first player and one empty bucket behind the last player. Instruct each team to fill the empty bucket of water behind them by taking sponges from the full bucket and passing them over the first person's head and under the second person's legs and so forth
- Slip and slide contest: Judge participants on speed, style, creativity and entertainment