Control the light with a diffuser. Soften the harsh light of mid-day sun by placing sheer white fabric, translucent paper, or a professional diffuser between your subject and the harsh light source. Stretch and fasten a white sheet to a hoola hoop.
The good old times of childhood :) when parents would actually let their kids spray each other with the garden hose. I'm glad my mom let us have water fights :) we used ice cream buckets AND the garden hose.