Need a reason to hike the Appalachian Trail? There are plenty. Sure, it may not be the longest hiking trail in the world anymore, but it still goes through 14 states, six national parks and eight national forests.
East Coast US - Appalachian Trail Thru-hike - "The Appalachian Trail is one of the longest continuously marked footpath in the world, measuring roughly 2,180 miles in length. The Trail goes through fourteen states along the crests and valleys of the Appalachian mountain range from the southern terminus at Springer Mountain, Georgia, to the Trail’s northern terminus at Katahdin, Maine."