I don't think any of the lakes around here allow it, what with all the debris that gets in the water, etc. The Des Plaines river is kinda nasty too but mostly just muddy and mucky. I don't know that I've seen posted restrictions anywhere, but you could check at a canoe launch near milwaukee and river road, or up near the dams in wheeling. unfortunately, inflatables also includes things like tubes and such, and probably another reason for the restrictions.