E.R.
hi M. - i live in cedar park too! Sahm to 6yr girl, 4yr boy, and 3 yr girl. Anyway, the best place we have found: go out 1431; go past I-35; maybe 1 mile or so is a field on the right side - it is right by some kind of office building. this is by far the best we have ever found. if you go on a weekend, be prepared to be patient to have a pristine pic as many people go there.