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Free Events and Things to do in Castro Valley, CA

Search for something you love or check out popular events in your area.

STAR TREK Trivia Night with Trek Triv in Oakland!
Today at 7:00 PM + 18 more
Oakland · Beeryland
STAR TREK Trivia Night with Trek Triv in Oakland!
Today at 7:00 PM + 18 more
Oakland · Beeryland
Free SPEED MEETING MONDAYS @ The New Parkway Theater *Make New Friends*
Mon, Jun 22, 7:30 PM + 79 more
Oakland · The New Parkway Theater
Free SPEED MEETING MONDAYS @ The New Parkway Theater *Make New Friends*
Mon, Jun 22, 7:30 PM + 79 more
Oakland · The New Parkway Theater
Downtown First Thursdays | Aug. 6, 2026
Thu, Aug 6, 5:00 PM
San Francisco · Natoma Cabana
Downtown First Thursdays | Aug. 6, 2026
Thu, Aug 6, 5:00 PM
San Francisco · Natoma Cabana
Sales end soon
FREE SUPER SMASH BROS MELEE + BOARD GAMES @ The New Parkway Theater
Saturday at 2:00 PM + 28 more
Oakland · The New Parkway Theater
Sales end soon
FREE SUPER SMASH BROS MELEE + BOARD GAMES @ The New Parkway Theater
Saturday at 2:00 PM + 28 more
Oakland · The New Parkway Theater
Crying Holy
Thu, Aug 13, 7:00 PM + 1 more
Oakland · City of Refuge UCC
Crying Holy
Thu, Aug 13, 7:00 PM + 1 more
Oakland · City of Refuge UCC
Jon Else's FRENCHMAN FLAT In-Store Event And Book Sigining
Tue, Sep 8, 7:00 PM
Berkeley · Mrs Dalloway's
Jon Else's FRENCHMAN FLAT In-Store Event And Book Sigining
Tue, Sep 8, 7:00 PM
Berkeley · Mrs Dalloway's
Sales end soon
Summer Solstice Vendor Fair
Saturday at 1:00 PM
Belmont · Mystic Flora Apothecary
Sales end soon
Summer Solstice Vendor Fair
Saturday at 1:00 PM
Belmont · Mystic Flora Apothecary
FREE: In Person Drop-In Aura Healings
Sun, Jun 28, 12:00 PM + 6 more
Walnut Creek · 3164 Putnam Blvd suite b
FREE: In Person Drop-In Aura Healings
Sun, Jun 28, 12:00 PM + 6 more
Walnut Creek · 3164 Putnam Blvd suite b
Golden Gate International Choral Festival
Mon, Jul 13, 4:00 PM
Walnut Creek · Walnut Creek Presbyterian Church
Golden Gate International Choral Festival
Mon, Jul 13, 4:00 PM
Walnut Creek · Walnut Creek Presbyterian Church
SECC Indoor Family Movie Club presents Zootopia 2
Sat, Aug 15, 12:00 PM
San Francisco · Southeast Community Center
SECC Indoor Family Movie Club presents Zootopia 2
Sat, Aug 15, 12:00 PM
San Francisco · Southeast Community Center
Mexico vs Czechia (WC 2026)
Wed, Jun 24, 6:00 PM
San Francisco · Underdogs Cantina
Mexico vs Czechia (WC 2026)
Wed, Jun 24, 6:00 PM
San Francisco · Underdogs Cantina
Sales end soon
Bird Adoption & Toymaking Faire (free!)
Saturday at 11:30 AM
Palo Alto · Museum of American Heritage
Sales end soon
Bird Adoption & Toymaking Faire (free!)
Saturday at 11:30 AM
Palo Alto · Museum of American Heritage
El Patio Dayclub: Lovefest 2026 Pride Weekend @ Endup San Francisco
Sun, Jun 28, 4:00 PM
San Francisco · The EndUp
El Patio Dayclub: Lovefest 2026 Pride Weekend @ Endup San Francisco
Sun, Jun 28, 4:00 PM
San Francisco · The EndUp
Going fast
A Writing Room Presents: Saturday Night OPEN MIC LIVE
Saturday at 6:30 PM
San Francisco · 301 8th St #235
Going fast
A Writing Room Presents: Saturday Night OPEN MIC LIVE
Saturday at 6:30 PM
San Francisco · 301 8th St #235
Love Island Season 8 Watch Parties at Bourbon Highway
Today at 6:00 PM + 20 more
Walnut Creek · Bourbon Highway Country Bar & Kitchen
Love Island Season 8 Watch Parties at Bourbon Highway
Today at 6:00 PM + 20 more
Walnut Creek · Bourbon Highway Country Bar & Kitchen
Going fast
4-Week Guided Meditation Session in Foster City, CA
Wed, Jul 8, 6:30 PM + 3 more
Foster City · Foster City Community Center
Going fast
4-Week Guided Meditation Session in Foster City, CA
Wed, Jul 8, 6:30 PM + 3 more
Foster City · Foster City Community Center
An Old-Fashioned Fourth
Sat, Jul 4, 10:00 AM
Redwood City · San Mateo County History Museum
An Old-Fashioned Fourth
Sat, Jul 4, 10:00 AM
Redwood City · San Mateo County History Museum
Just added
African American Family Day 2026
Sun, Sep 6, 11:00 AM
Oakland · De Fremery Park
Just added
African American Family Day 2026
Sun, Sep 6, 11:00 AM
Oakland · De Fremery Park
Whole, Worthy and Free: Oakland
Tue, Jul 28, 5:30 PM
Oakland · Black Panther Party Museum
Whole, Worthy and Free: Oakland
Tue, Jul 28, 5:30 PM
Oakland · Black Panther Party Museum
Christian Singles Coffee Meet-up
Sat, Jul 18, 9:00 AM
Concord · Gratitude Coffee Bar
Christian Singles Coffee Meet-up
Sat, Jul 18, 9:00 AM
Concord · Gratitude Coffee Bar

Trends in Castro Valley

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Explore more trends

Frequently asked questions about Castro Valley

What are the best free events to attend?

According to Eventbrite, the best free events are:

Free SPEED MEETING MONDAYS @ The New Parkway Theater *Make New Friends*

Downtown First Thursdays | Aug. 6, 2026

FREE SUPER SMASH BROS MELEE + BOARD GAMES @ The New Parkway Theater

Which events are currently trending in Castro Valley?

The trending searches this month in Castro Valley are:

k pop demon hunters

free events in the bay area

Which free events are coming up?

Discover the best free events happening soon – you don't want to miss them:

Love Island Season 8 Watch Parties at Bourbon Highway

STAR TREK Trivia Night with Trek Triv in Oakland!

Bird Adoption & Toymaking Faire (free!)

Summer Solstice Vendor Fair