I am going to be taking a city girl out on a hike in the next week or so. She is from Chicago and not used to the outdoors. I am looking for suggestions where we can go on a few mile hike where there will be a lot of great scenery. I am not looking to go on a casual bike trail,I would like to find more challenging terrain and more of a "wilderness" feel. I would live to find a trail that crosses streams or goes past ponds or marshes. The denser the forest the better. She will have good boots and suitable clothes for whatever weather we encounter. She is in great physical shape so no worried about hills. The closer to the Northwest corner of the state the better. The Dunes or the Grand Kankakee marsh would be about as far as I would want to venture.