Well I checked out the City of Madison's website and it looks like Capitol Square is booked with the Farmer's Market from 6am-2pm on May 12. The Capitol was my first choice, just because it is the capitol and I thought we'd get a lot of spectators. So, unless we want to have a late walk (which isn't out of the question for me, as May weather in WI is unpredictable, and is usually warmer after noon), we can move to one of the city parks. Elver park would be my first park choice.
***UPDATE*** Ok, nix those. The permit fees are ridiculous at the City parks. We'd need a permit just to do a bake sale. Ok, the next idea would be to hold the WAT at a location like a church or school (like the Beaver Dam walk). We MAY have to get a street use permit...but that is a minor charge I'm sure I could find a sponsor to cover. There is a school just down the street from my house (walking distance), and my church has pretty large grounds and we could use their bathroom facilities. It is bordered by a busy street (maybe not super safe for the little ones, but good advertisement), so we could plan the "route" with or without using the busy street. Any opinions from the Wisconsinites?