The libraries have storytime for babies, and there is also Music Together which is mommy and me music class. I’ve enjoyed both. For movement, I’ve heard there is good postnatal yoga at Yoga Beach and a few other places.
@Jasmine started a meetup group where we walk / hike/ or do other activities. Check out here : Check out Kangaroo Klub: A Mommy & Me Group on Meetup https://www.meetup.com/kangaroo-klub-a-mommy-me-hiking-group
@Carolyn what part of SF do you typically meet up in?
@Carolyn I live in richmond district and she lives in panhandle. We have met in both areas as well as in daily city. Always open to meet anywhere though!
Try Nextdoor too!