I'm going to be in Chicago this weekend with daughter and wife.
Would like suggestions. Apparently the weather will be good.
I was thinking a city tour for one day. Maybe one of those hop on hop off things.
And something with the water on the other day. Be it beach (are there beaches?) or taking a cruise/sail or something on the Lake.

Good plan? Bad plan? Better stuff to do? Specific suggestions.

I know there are several Chicago dwellers on the board. I'm counting on you guys.

PS. Leaving then Chicago for St. Louis. Its a 5 hour drive (ugh). Anything on the way worth stopping for? (could even make a whole day out of it, if warranted).