Find your people, a few blocks away.

2nd Saturday monthly; doors 9:30am, meeting 10am

A 501(c)3 non-profit social group for all San Mateo County residents, founded by Ida Lindau in 1949 as the San Mateo Newcomer's Club and renamed in 1998.

A group of business and civic-minded individuals and leaders being the change we want to see in Fremont and the world.

Saturdays at Equator Coffee by Fort Mason

non-binary run club is celebrating, uplifting, and providing a training community for trans and non-binary runners.

Mon 5:30-6:30pm, Tue/Thu 8:30-9:30am, Sat 9-10:30am at Health Quest pool; summer open water Sundays 9-11am at Lake Berryessa

7 mornings a week at Redwood High School (Larkspur) and College of Marin Kentfield; M/W/F 8:30-9:45am, T/Th 8:30-9:45am and 9:45-11am

Junior and adult programs year-round; summer learn-to-row camps June-July

Private nonprofit organization promoting fellowship among the Norwegian-American community in the San Francisco Bay Area.

Playgroups, outings, family events, and moms' nights out (member-led)

Bay Area hiking club/community focused on organized hikes and social outdoor connection.

Professional chapter for Black engineers and technologists with networking, programs, and community activities.

The Oakland Chess Club (OCC) is one of the premier chess organizations in the San Francisco Bay Area. OCC provides a friendly environment for players of all ages and skill levels to enjoy the game of chess.

Offbeat San Francisco is a Meetup group exploring unique, unusual, and offbeat attractions and events in the city.

A chapter of the National Audubon Society. Our mission is to celebrate and protect birds and their habitats in Southern and Eastern Alameda County

Membership meetings and regular field trips; June 2026 annual potluck picnic at Lake Chabot Regional Park

Tennis has a long history, but the birth of the game played today is thought to have taken place in England. Played on a rectangular court lined for singles and doubles, players wield stringed rackets and hit the ball over a regulation tennis net, which divides the court in two. A point is a single exchange in which opposing players win by hitting the ball within the lines but out of reach of their opponent, or if their opponent hits the ball outside the lines or into the net.

Monthly Bay Area meetup around OpenTelemetry and open-source observability for DevOps, SRE, and software teams.

Bay Area chapter of OWASP for application-security professionals, talks, and community events.

Oyster Bay Disc Golf Club was incorporated as a non-profit public benefit corporation to support and maintain the Oyster Bay Disc Golf community

A 501(c)(3) all-volunteer dragon boat team founded in 2012 and based at Oyster Point Marina; mission is to promote dragon boating in a fun and safe environment while fostering team spirit and friendship; includes adult, middle school (Tiger Sharks) and high school teams.

Wednesdays 7:30pm South Bay riichi ladder in Santa Clara; weekend 1pm learn-to-play sessions in Fremont

Regional Masters swimming network for adult swimmers with clubs, workouts, meets, clinics, and social functions.