3. The Knobstone Trail
For those seeking a more arduous trek, try the the Knobstone Trail. This is Indiana’s longest backpacking trail and is used by thru-hikers to train for the Appalachian Trail. Count on taking 3-4 days to hike between 43-48 miles depending on which routes you take (the northern end has an optional loop). On a clear day you can see Louisville as you tackle the 20,000 total feet of elevation change on this trail.