From the North Bay:
101 South across the Golden Gate Bridge
Stay in left lane after toll plaza
Continue on 101S - Downtown Marina Blvd to the left
At the intersection of Marina Blvd and Buchanan Street, turn Left into Fort Mason parking lot for free unlimited parking in this lot

From the South Bay:
101 North
Bear Left
Exit Ninth St. Stay in one of the 2 left lanes.
Pass Market Street and Van Ness Avenue.
Right on to Franklin St.
Left on Bay St.
Pass Laguna Street.
Turn Right at the Chevron Station (Buchanan St.)
We are a block and a half down at 3727 Buchanan St. on the left hand side.
Continue past Marina Blvd. intersection into Fort Mason parking lot for free unlimited parking in this lot.

From the East Bay:
I-80 across the Bay Bridge
Fremont Street Exit
Right onto Howard Street
Left on Embarcadero
Left on Bay Street
Right on Buchanan Street
Continue past Marina Blvd intersection into Fort Mason parking lot for free unlimited parking in this lot