Harper's Ferry is also one of the most famous stops along the Appalachian trail, and you're likely to spot a number of thru-hikers in town. That said, the hike to Maryland Heights actually isn't on the AT alignment, making for a unique and entertaining hike.

The heights themselves are located low on the mountainside, with the shortest route to reach them measuring only about 4.5 miles round-trip. For bonus miles, continue higher up the mountainside to reach the old stone fort.

Sources: https://www.nps.gov/hafe/planyourvisit/maryland-heights-trail.htm https://appalachiantrail.org/our-work/about-us/contact-us/harpers-ferry-visitor-center/