See how far you can swim underwater!
Swimming pool Prizes
Have the kids line up beside a length of a pool, (25m is ideal). One by one they have to start at one end and swim as far as they can underwater, until they have to come up for air. Once they surface, have them sit on the pool deck, next to the place where they came up. The top 5 or 10 people who went the farthest get a prize.