Even though it is a huge tourist destination, San Francisco has a ton of free, non-touristy events, activities, and hidden spots. What is the best free thing you've done in San Francisco?
As usual, we'll start off the list. Share your favorite free activities, events, or places to go in San Francisco so that others can try them out! If someone else already submitted your recommendation, star or reply to their comment with your experience. Join the discussion in the comments with this format:
Name of Activity or Location
[A photo of your recommendation]
Why: Explain why you think people should give it a try and what your experience has been with the activity.
Image from didierbigand.