The kids love water and playing with it and so I keep trying to come up with new ways that they can explore games with water (usually outside).
All I did for this was get about five meters of aluminium foil off the roll from the kitchen and lay it out flat on the floor in the yard, then pinch up the sides of it to make walls, and then we put the hose pipe on at a trickle and waited for a river to form.We got the river to be about an inch deep and the kids floated bottle tops down it for quite some time. I had about 20 different brightly coloured bottle tops saved, but I didn't get photos of that. With there being so much water in the equation, I just took a handful of pics and then put the camera back inside the house. You get the idea though.
I left the tin foil out in the yard tonight, because if the weather is this good again tomorrow then we might try making mini boats with sails for them to blow down the river or fan with newspaper.
Because it's just one big bit of foil with water in it, I can just scrumple it up when we are done and throw it in the recycling bin.
We may use this idea in the future to build some more complicated winding canals or a moat for a castle. So many possibilities. First things first though, we need to make some boats with sails.