It's the most sought after space this time of year for local Girl Scouts.
Last year was the first year the Girl Scouts sold cookies at tables near the exits of the heavily traveled transit station.
It turned out to be a bonanza. Scout leaders say on a good day the girls can sell more than 200 boxes an hour at this station.
This year, the parents of Girl Scouts scrambled to reserve spots at the coveted location. Scout parent Lynne Takeuchi said she and others waited in line for more than 40 minutes at a regional Scout meeting to get their girls on the list.
The reservations are from 4 p.m. to 6 p.m. on weekdays. During those two hours, 20 BART trains will stop in Walnut Creek.
On Wednesday evening, Takeuchi's daughter and three other Scouts from Walnut Creek Troop 32008 were at the BART station exits, serving customers who walked down from the platform.
The girls, all students at were ready every time a flood of transit passengers came down the steps after departing from a BART train.
They'd shout "Girl Scout cookies" and warmly greet those who wandered over.
The Scouts will be selling cookies at the BART station and other venues in Walnut Creek through mid-March. You can see the schedule here or wait for them to come to your door.