Events and Things to Do in Castro Valley, CA

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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Featured

Mom's Haunted House

OCT

24

7:00 PM

1379 Kathy Ct, Livermore, CA

Livermore’s family-run haunted house is back for another night of screams.For decades, our family has transformed Mom’s house...

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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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Sunday, October 25

Featured

Yoga Teacher Training Info Session at YogaSix Danville

OCT

25

9:30 AM

YogaSix Danville, 680 San Ramon Valley Blvd, Danville, CA

Have you ever thought about deepening your yoga practice or becoming a yoga teacher? Join us at YogaSix Danville for a casual...

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Featured

Free Fall Fun for the Whole Family🎃🍭👻

OCT

25

9:30 AM

3160 Crow Canyon Pl, San Ramon, CA

Looking for something free and fun to do with the kids this weekend? Join us for Fall Fest at Eastown Church on Sunday, October...

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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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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

  
  
• Mom's Haunted House 7:00 pm

  1379 Kathy Ct, Livermore

  
  
• 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

  
  
• Free Fall Fun for the Whole Family🎃🍭👻 9:30 am

  3160 Crow Canyon Pl, San Ramon

  
  
• 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

  
  

Thursday, October 29

• Find your Voice and Change your Life with Toastmasters 6:00 pm

  Union City Library, 34007 Alvarado-Niles Rd, Union City

  
  

Friday, October 30

• Free Sensory Friendly Trick or Treat! 4:30 pm

  Alamo Women's Club, 1401 Danville Blvd, Alamo

  
  

Saturday, October 31

• Halloween Bash at Concannon 7:00 pm

  4590 Tesla Rd, Livermore

  
  
• October 2026 QuaranBOOlooza Livestream Music Fest 11:30 am

  Online

  
  

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

  
  

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

  
  

Saturday, November 14

• Holiday Craft Fair & Petting Zoo! 10:00 am

  1055 Serpentine Ln, Pleasanton

  
  

Sunday, November 15

• Earth Rhythms Circle 1:00 pm

  Heirloom East Bay, 9990 Crow Canyon Rd, Castro Valley