Try to get the stone to skip along the top of the water in a lake or pond (smooth water without waves works best). If you throw the stone side-arm, it helps the stone bounce along the water’s surface. See how many times you can get it to skip.
Safety First: watch out for people and animals.
Make this a family activity: See who can skip their stones the most or the farthest.
This activity promotes motor control and angle calculation development.