On hot summer days try using water balloons or running the race through a sprinkler. Set ground rules such as no hitting in the face or head. After the water fight is over, or every hour or so, have a race to see who can pick up the most broken water balloons until they are all picked up. Use a plastic milk carton to collect them in, the spout is small enough to collect them and little hands can't reach in and take them out . You will need one raw egg and one spoon for each person participating in the race.
Line contestants up next to each other on a starting line.
Place the egg in the spoon. The racer must balance the egg in the spoon, without using their free hand, and make it from point A to point B and back to point A again. This race works best with Rubbermaid containers, the size that you can fit snugly into your kitchen sink. Mark the inside of the container with a marker and fill with water to that marked spot. Howeverm in this race, each contestant runs solo.