There is no convenient or close campground anywhere near the city.

However the marshaling yard or lay down lot for mc cormick place. Is the perfect location for a weekend in the bus in chicago. It's on the lakefront right downtown. Very inexpensive. There is a guard 24 7 365 at the gate it is very well protected and safe. This is a lot they use to tailgate bears games too.

If there is an event weekend at the convention center depending on what it is it could be very full but always space. No event weekends u got acres. Another great mini rally spot.