This lot is located on the south side of Reagan National Airport. Because it is a bit farther away from DC, you are less likely to have trouble finding parking locations on nice days. Also, parking time limits are less restrictive.
The location is easily reached from either northbound or southbound George Washington Parkway. Bicycle access to downtown is via the Mount Vernon Bike Trail.
1. Mount Vernon Trail: Follow the bike trail north along the river.
2. Cross 14th St Bridge: After passing under the Railroad, Metrorail, and 14th Street Bridge Spans, look for the side trail on the left. This will take you up to and over the 14th Bridge
3. Basin Dr: Cross over to the sidewalk side of Basin Drive, and then follow int counter-clockwise around the Tidal Basin
4. Wallenberg Place: Bear right at a traffic light to continue north on Raoul Wallenberg. The National Mall is one block north of this location.