Some lovely chaps gather 'round to play this glorious game in Dolores Park on Thursday and Saturday evenings. Check Facebook to see if the group has numbers, 6 are needed for a game, and if you're in, make a post day-of or reply with a gif to somebody else's! Follow their Facebook or Instagram pages for the latest updates.
All levels are welcome, though it's a good idea to show up early if you're an absolute beginner to warm up with some drills with somebody experienced.
If you don't have a bike, somebody will probably let you borrow theirs. If you have a single speed bike that can take a beating and that has a brake on your non dominant hand side that'll do (your dominant hand will be holding a mallet).
Their Instagram bio as of 2021:
We play #bikepolo at Dolores Park Thursdays and Saturdays 6pm til 10pm. New players welcome! #bicipolo #sfbikepolo
A description of the sport:
A most noble tradition invented in Ireland 117 years ago! Mallets and balls provided. Scorekeeping forbidden. Everyone is welcome. Bring your refreshments and your bike — anything that can take a couple bumps, wider tires are easier than skinny, fixed-gear is good, drop handlebars are not.