Trail run on MCB Quantico.
Planned on running the mall + tidal basin, but it was so damned nice out I made a left at the Lincoln and ran across memorial bridge to Arlington, followed the river over to the Key bridge to Georgetown, and then followed the waterfront back to the Lincoln and the normal mall route. What a beautiful day outside.
Oh, and in my habit of running into large gatherings, apparently today was the Race for the cure. Ran smack into 50k people trying to block my path. I showed them :)