The Sierra Club San Francisco Bay Chapter offers hikes and outdoor recreation for people of all ages.  For a more complete listing of all Chapter outings and events see our Calendar. There are many more events on the calendar than it is possible to list on Meetup!

Outings are conducted by the San Francisco Bay Chapter's Activity Sections and Regional Groups.  Activity Sections are organized around either an activity, such as hiking or backpacking, or a social theme, such as Sierra Singles.  No matter the theme, our outings and activities are open to all.  Everyone is welcome, including those who are not members of Sierra Club (unless, rarely, otherwise stated). For more information about the Chapter's activity sections, click here.

You can also join the Sierra Club, which is a good idea because it is the Sierra Club that makes all this possible. Join or renew today. If you'd like to lead hikes or other outings, you'll need to be a member of the Club.

We also advocate for policies that protect our natural environment, support environmental candidates for public office, and provide opportunities for people who want to develop leadership skills to give back to the community and help the environment. We serve Alameda, Contra Costa, Marin, and San Francisco Counties, California.

For additional information about our outings, including outing policies and rating codes (1A, 2B, etc.), please see Hike Difficulty Codes.

Before you attend any Sierra Club activity please familiarize yourself with our Outings Policies and Background Information. Also, please note that dogs or other pets are permitted only on outings that are pre-advertised or otherwise identified as dog- or pet-permitted outings. (Service animals, as defined by the Americans with Disabilities Act, are not considered pets.)  For complete information about the Club's dog and pet policy, click on the "Pages" tab and scroll down through the Table of Contents to "Dogs on Hikes" (http://www.meetup.com/sanfranciscobay/pages...).

Note: CST 2087766-40. Registration as a seller of travel does not constitute approval by the State of California

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Welcome!

Recent Meetups

  • 6 days ago · 11:30 AM

    Point Isabel Shoreline Walk

    18 Members | 5.00 5.005

    Join us on a 4.5 mile level walk on the Bay Trail along the Richmond shoreline from Point Isabel to Marina Bay. Meet: At the end of Rydin Road, at the Point Isabel... Learn more
  • 6 days ago · 9:30 AM

    Mount Tam Creek Loop

    33 Members | 5.00 5.004

    Synopsis: Hike down beside Bootjack Creek (possible cascades), through Redwood groves, and along Redwood Creek into Muir Woods. We will stop briefly at the Visitor... Learn more
  • 6 days ago · 9:00 AM

    Plant trees in Oakland!

    2 Members

    Get a great start on your weekend by planting trees in Oakland! Volunteers from the San Francisco Bay Chapter have been helping Oakland continue its public tree-planting... Learn more
  • April 11 · 7:00 PM

    GREEN FRIDAY

    12 Members

    Green Fridays, sponsored by the Sierra Club Northern Alameda County Group, is a series of public presentations by expert speakers on the most important environmental... Learn more
  • April 6 · 1:00 PM

    Bay Trail bike ride - visit the Hayward Shoreline Interpretive Center

    6 Members | 5.00 5.002 | 14 Photos

    Repeat of a popular group bike ride along the Bay Trail, through Oakland's Kennedy Tract district to San Leandro marina (snack stop) to Hayward Shoreline Interpretive... Learn more
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