my girlfriend and i just got back from our first overnight (illinois beach state park) 100 miles round trip from argyle/damen - bike paths 90% of the way. campground is way "local" feeling, lots of RV's - which means lots of beer. our neighbors offered me a miller light about 30 seconds after we pulled in.

if you want a route description - i can post it. super easy ride, liquor store right next to the camp ground (if you're into solo drinking).