Directions provided before departure. Cars depart in staged intervals. Look for clues along the way. First clue for getting to the starting point: Find the Stonehenge in the campground at Illiniwek Forest Preserve Campground, 1201 State Ave., Hampton, IL. Navigators are mandatory for safety reasons. Pen or pencil and clipboard/notepaper recommended. 2.5-hour route ends at The Candy Kitchen in Wilton.