One of your first stops should be Appalachian Trail Conservancy Headquarters. Here, you'll be able to find your bearings and get lots of useful information before you begin exploring.
This tourist information center is on the to-do lists of many visitors to Harpers Ferry. But Appalachian Trail Conservancy Headquarters isn't the area's only drawcard. Harpers Ferry National Historical Park, Sleepy Hollow Country Club, and Blue Ridge Center for Environmental Stewardship are some other worthwhile sights nearby.