Typically, there are staging areas North AND South of Olympia where everybody gathers and groups up, so that everybody can converge on the capitol around the same time. IIRC, last year we met in the Tacoma Mall parking lot at 10:00 and were @ the Capitol at 11:00. There's a couple of hours spent getting through the traffic jam, walking around the capitol, listening to the speakers, etc... then several of us have met for lunch somewhere in the past.
J