On: Ask HN: What to do in SF 18-21?

[metanoize]

http://www.ferrybuildingmarketplace.com/farmers_market.php

http://www.21st-amendment.com/ (if you're over 21 for the beer or just have a burger!)

http://www.7x7.com/ (for an even calendar)

http://sanfrancisco.going.com/