San Leandro Headquarters
Walking directions from the San Leandro BART Station:
While standing on the platform, you will see a large wire statue of a dancing woman. Leaving the station, walk north toward Davis Street. Before reaching Davis Street, you will see a break in the fence on the left that leads across the old train tracks. Cross the tracks and head towards the statue.
Walk across the plaza, past the statue and OSI Soft Building to reach Alvarado Street. Turn left on Alvarado and cross the Amtrak train tracks. Porifera is located in the business park on the right at 1575 Alvarado Street.