The Run Down
This guide has you going deep inside a forest preserve where you'll camp along the shores of a small lake, do a bit of hiking, and hang by a campfire. If this is your first overnight camping trip with kids, this is an excellent option, as the grounds are set up to make this as easy as possible. You're also only 30ish minutes from downtown Chicago, so you're not too far away if you need to cut the trip short and head back into the city.