ericosmith wrote:
It's going to be an awfully long commute involving several modes of public transportation if you're going to plan to camp and see downtown sites. You'll likely spend almost as much time commuting as you will site seeing.
The above post is incorrect information.
See the posts about Indiana Dunes State Park and National Lakeshore.
Since it is a commuter line, the train has runs beginning early in the AM and the last returning trip is around midnight, but there are also many throughout the day. The ride from Dunes Park Station to downtown is a bit over one hour. We have FREQUENTLY taken the South Shore into Chicago for a day trip. You can arrive early, stay all day, and return home as late or early as you want to.
The South Shore Commuter Train stops very near the Dunes Parks, and it takes you right into downtown Chicago, where you can walk to sites and shops in the Loop, on State Street and Michigan Avenune. Along the way to downtown, it also stops very near (easily walkable) the Museum of Science and Industry, and also near the Museum Campus (Adler Planetarium, Field Museum of Natural History, and Shedd Aquarium).