Hosting SF's original, biggest and lowest-priced farmer's market on Saturdays and the city's largest flea market on Sundays - 100 Alemany packs a punch from the backside of Bernal. Nestled against the 101/280 freeway interchange, the urban local is also quite accessible to surrounding areas.
There are a host of smaller farmer's markets around town, the most popular of which is the Tuesday, Thursday, Saturday market at the Ferry Building.
In addition to the farm produce and vintage goods (fleas?), the markets host a variety of prepared dishes and entertaining diversions :)
Address: 100 Alemany Blvd, SF
Website: http://www.sfgsa.org/index.aspx?page=1058