Richard from Washington DC on 8/5/2020 10:45:00 AM:
John W. is right that the towpath is pretty flat, but since it follows a river which flows from the mountains to the sea, it is slightly downhill towards the sea. On turn-around rides, I prefer riding upriver on the first leg in order to make the return trip, when I am a little tired, easier. And although it is indeed relatively flat between Harpers Ferry and Shepherdstown, there is a bear of a hill from the towpath up to the bridge that takes you over the Potomac and into the town. I find Harpers Ferry pretty touristy and not a place I'd want to spend the night. I would suggest staying in Shepherdstown and, if you want to spend some time in Harpers Ferry, riding down there for lunch, looking around the historic part of town, which is relatively flat, before heading back. Of course, you still have the big climb to the bridge at Shepherdstown, but if you have your bikes on your car, you can simply drive down to the towpath, park, and thus avoid the hill. If you want a few more miles, Brunswick is only 5.7 from Harpers Ferry, so you could do all of that in a day with a stop for lunch.