100 Maryland Avenue Southwest, Washington, DC 20001, (202) 225-8333
Great Falls Maryland side
10801 Macarthur Blvd, Potomac, MD 20845
Parking is best across from the Old Anglers Inn. The parking is free. The Old Anglers Inn is also a good place to get lunch after the hike. The is approximately 4 miles.
Gaylord National Resort & Convention Center
201 Waterfront Street, National Harbor, MD 20745
The Gaylord is a really fun place to walk around and grab a nice dinner.