Events and Things to Do in Castro Valley, CA

Sunday, October 18

Featured

Free Household Hazardous Waste Drop-Off 10/18 in San Leandro

OCT

18

9:00 AM

San Leandro, CA

Collect all your household hazardous waste and bring it on Sunday, October 18. Safely dispose of your old batteries, medicines,...

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Featured

Educators Speak Up About Book Bans

OCT

18

2:30 PM

Castro Valley Library, 3600 Norbridge Ave, Castro Valley, CA

Join two long-time Bay Area educators, Sue Granzella and Betsy Snow, for a powerful discussion on how culture wars and book...

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Friday, October 23

Featured

Harvest Festival® ~ Pleasanton

OCT

23

10:00 AM

Alameda County Fairgrounds, 2005 Valley Ave, Pleasanton, CA

The Pleasanton Harvest Festival® is back at the Alameda County Fairgrounds October 23–25! For more than 50 years, Harvest...

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Saturday, October 24

Featured

Jazzercise Pink Out Class and Party

OCT

24

8:30 AM

Jazzercise Dublin, 7600 Amador Valley Blvd, Dublin, CA

Join Jazzercise Livermore and Jazzercise Dublin for a high-energy dance fitness workout in honor of Breast Cancer Awareness...

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Featured

Trunk or Treat Family Fest

OCT

24

4:00 PM

Coastline Christian Schools, 1801 N Loop Rd, Alameda, CA

Join us for Trunk or Treat Family Fest, a fun-filled evening for the whole family! 🎃 Enjoy lots of decorated trunks and candy,...

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Tammy McCann Trio Plays San Ramon Library

OCT

24

7:30 PM

San Ramon Library - Contra Costa County Library, 100 Montgomery St, San Ramon, CA

Adventures in Jazz 2026 at the San Ramon Library returns for a new season of fine jazz!   The season’s second show is set for...

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Saturday, October 31

Featured

Halloween Bash at Concannon

OCT

31

7:00 PM

4590 Tesla Rd, Livermore, CA

Saturday, October 31 | 7–11 PM $70 General Admission | $60 Wine Club Members This Halloween, we’re transforming the Concannon...

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Sunday, November 1

Featured

Halloween & Día de los Muertos, Oceánica Ballet’s Viva La Vida & Excerpts of P1N0CCH10 & Carmilla

NOV

1

4:00 PM

College of San Mateo Theatre, 1700 W Hillsdale Blvd, San Mateo, CA

Viva La Vida with Excerpts from P1N0CCH10 & Carmilla features new works and a returning Oceánica Ballet autumn tradition. Act...

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Sunday, October 18

• Free Household Hazardous Waste Drop-Off 10/18 in San Leandro 9:00 am
  
  
• Educators Speak Up About Book Bans 2:30 pm

  Castro Valley Library, 3600 Norbridge Ave, Castro Valley

  
  

Wednesday, October 21

• Sunset Reset: Somatics & Sound (Flow, Meditation & Sound Bath) 7:00 pm

  Heirloom East Bay, 9990 Crow Canyon Rd, Castro Valley

  
  

Friday, October 23

• Harvest Festival® ~ Pleasanton 10:00 am

  Alameda County Fairgrounds, 2005 Valley Ave, Pleasanton

  
  

Saturday, October 24

• Jazzercise Pink Out Class and Party 8:30 am

  Jazzercise Dublin, 7600 Amador Valley Blvd, Dublin

  
  
• Trunk or Treat Family Fest 4:00 pm

  Coastline Christian Schools, 1801 N Loop Rd, Alameda

  
  
• Tammy McCann Trio Plays San Ramon Library 7:30 pm

  San Ramon Library - Contra Costa County Library, 100 Montgomery St, San Ramon

  
  
• Koinonia Con 10:00 am

  Redwood Chapel Community Church, 19300 Redwood Rd, Castro Valley

  
  

Sunday, October 25

• Yoga Teacher Training Info Session at YogaSix Danville 9:30 am

  YogaSix Danville, 680 San Ramon Valley Blvd, Danville

  
  
• CVUMC Trunk or Treat 2026: Free Food, Games, & Prizes! 11:30 am

  United Methodist Church Castro Valley, 19806 Wisteria St, Castro Valley

  
  

Monday, October 26

• Angus & Friends Cat Rescue Fundraiser in Castro Valley 7:00 am

  Canyons Barbeque, 3341 Castro Valley Blvd, Castro Valley

  
  

Saturday, October 31

• Halloween Bash at Concannon 7:00 pm

  4590 Tesla Rd, Livermore

  
  

Sunday, November 1

• Halloween & Día de los Muertos, Oceánica Ballet’s Viva La Vida & Excerpts of P1N0CCH10 & Carmilla 4:00 pm

  College of San Mateo Theatre, 1700 W Hillsdale Blvd, San Mateo

  
  
• Halloween & Día de los Muertos, Oceánica Ballet’s Viva La Vida & Excerpts of P1N0CCH10 & Carmilla 4:00 pm

  College of San Mateo Theatre, 1700 W Hillsdale Blvd, San Mateo

  
  

Saturday, November 7

• Explore Coastline - Info Day at Coastline Christian Schools 10:00 am

  Coastline Christian Schools, 1801 N Loop Rd, Alameda

  
  

Sunday, November 8

• FREE East Bay Kids' Book Fair coming to San Ramon Nov. 8 10:00 am

  Pine Valley Middle School (PVMS), 3000 Pine Valley Rd, San Ramon

  
  

Sunday, November 15

• Earth Rhythms Circle 1:00 pm

  Heirloom East Bay, 9990 Crow Canyon Rd, Castro Valley

  
  

Monday, November 23

• Thanksgiving Art Camp 10:00 am

  Aran's Art Studio, 3313 Village Dr, Castro Valley

  
  

Wednesday, December 2

• Sunset Reset: Somatics & Sound (Flow, Meditation & Sound Bath) 7:00 pm

  Heirloom East Bay, 9990 Crow Canyon Rd, Castro Valley

  
  

Thursday, December 31

• New Year's Eve Party with Life in the Fast Lane, A Tribute to the Eagles 6:30 pm

  19501 Redwood Rd, Castro Valley