This is what we've been doing lately in our backyard....
The water play was my idea (we bust out the kiddie pool as soon as it hits 50 degrees:) It occupies little minds for very long periods of time!
The brick throwing on the other hand- was NOT my idea (I swear)...but we go with it:) We take the "natural consequence" approach to parenting;)
I'm not sure yet what we are conditioning for-- grecco-roman wrestling?...shot put?...strong man competition????