I do this exercise on land a couple times a year. It is a lot of fun and gets the kids familiar with the med balls. I thought it would work in the water, so I put fins on the kids and set them up along the lane line. It does take a lot of practice and some rules to keep the kids from getting hit in the face...and most of the time that works. After about 15 minutes, it can go pretty nicely. I suggest practicing on land before trying it in the water. Just be patient and have fun.
