Cachers love numbers and statistics!
They come up with almost every conceivable way possible to complete a challenge cache or a personal challenge. I have caching friends who are trying to complete their event calender (that is, filling in all 366 dates on a calender with events, just not all in the same year. But you never know some cacher may be trying to do that.)
Make that immediate left as you come into the lot from the light or you'll have to turn around.
This event will be held in the back of the Reston Park and Ride lot where other events have been held.
Hope to see you there!