I like that floating target!
It's a bit of a Maguyvered solution. I made my regular old chipping target float by attaching an adhesive backed split pipe insulation foam noodle from Home Depot. I looped a rope thru the target and tied it to both sides of the base, then hooked the loop over a short length of pipe driven into the ground. The pipe serves as a pulley and depending on which end of the rope I pull, the target rotates that direction. That way the target stays right in the middle of the pool but I can go down to the shallow end and hit 30-40 footers by just rotating the target that way. The two clips are still accessible so it folds flat for storage.