DIRECTIONS FROM NORTH BAY to LDAC: Take 101 S across the Golden Gate Bridge. Once you cross the bridge, continue straight toward downtown San Francisco When you see the signs for the split between the Marina (left) or Downtown San Francisco / Lombard St. (right), bear RIGHT and get in the right hand lane You are now on RICHARDSON ST. On the left you will see the domed building, the Palace of Fine Arts. Turn RIGHT on LOMBARD ST. Proceed through the Lombard Gate into the Presidio Turn RIGHT at first stop sign onto LETTERMAN DRIVE. Turn RIGHT at second driveway into Letterman Digital Arts Center. Enter through the LETTERMAN DR. VISITOR PARKING ENTRANCE. We are in Building "B" - just past the Yoda fountain.