Migration of Grey Whales (seasonal North & South)

http://www.oceanicsociety.org/graywhales

Bay Area Anarchist Bookfair

http://sfbookfair.wordpress.com/

St. Patrick’s Day Parade

http://www.sfstpatricksdayparade.com/

San Francisco International Asian American Film Festival

http://festival.asianamericanmedia.org/

The San Francisco Natural History Series

http://sfnhs.wordpress.com/

Critical Mass Bike Ride

(begins at east end of Market St on the last Friday of the month at about 6pm)

http://critical-mass.info/