I don't. I have a bit of a walk to a nearby park and I have to walk them along a road without a proper side walk. It's not too bad during the day when there isn't a lot of traffic, but I wouldn't feel confident walking all 5 down the street.

I save the park for special days when I have 2 or 3 and we can go into the wagon. I can safely and confidently watch 2 or 3 and that's about it.

I think there are too many variables at a public park. People I don't know, garbage on the ground, maybe something sharp, pets, older kids etc.

I have developed a pretty awesome structure in my back yard so the kids don't seem to miss the park too much.