National Harbor MarinaVisit WebsiteGet Directions Details Details One of the premier Marina's along the Chesapeake featuring the best facilities and a professional staff. Hours See website for hours. Location168 National PlazaOxon Hill, MD20745Get DirectionsContact Local Phone: 301-749-1582MapCapital RegionPlaces NearbyAccommodationsComfort Inn-Oxon HillLearn MoreAccommodationsHarborside HotelLearn MoreAccommodationsAC Hotel Washington, DC at National HarborLearn MoreAccommodationsMGM National HarborLearn MoreAccommodationsRed Roof Plus+ Washington DC-Oxon HillLearn MoreSee More For Capital Region