Natural exploration can be one of the things to do in DC by a visitor, and none is greener and more exciting than the George Washington Memorial Parkway and Mt. Vernon biking/hiking trail area. Just miles off the center of the capital, this area was intended to be a greenway and gateway leading to Washington DC. It is definitely a welcome respite for visitors amidst the urban developments that pervade DC. Outdoor enthusiasts can take their bikes for a ride or their boots for a hike. Anyone wanting a breathtaking view can just go to Gravelly Point where planes taking off from the Reagan National Airport can be seen.