The Rhode Island North-South trail 77 miles, originally a hiking trail, now for hiking, Mt. Bikes, and horses. Mostly off road with some pavement connecting them when needed.
NO way you can do it in a day. You will miss some trail markers and end up in a boulder field once in a while. Waterfalls, bridges , farms, historic sights, old mill waterwheels etc. etc. A small covered bridge just for hikers and bikers in the middle of nowhere. Rock cliffs to carry the bike up, swamps etc.
I have tons of pictures, I did a few trips on weekends to complete it. Many people camp along the way.
If you take the time to look at the photos you probably will get hooked. # different "albums"
http://pg.photos.yahoo.com/ph/dad029.../ph//my_photos
http://pg.photos.yahoo.com/ph/dad029.../ph//my_photos
http://pg.photos.yahoo.com/ph/dad029.../ph//my_photos