Halloween in the Tri-Valley: Spooky Fun for Adults in 2025

As the crisp autumn air settles over the Tri-Valley, the region transforms into a Halloween haven for adults seeking a blend of thrills, chills, and festive cheer. From haunted bar crawls to wine-tasting trolley tours, the Tri-Valley offers a plethora of adults-only Halloween events that promise unforgettable experiences. Whether you're a local or visiting, these events are the perfect way to celebrate the spooky season in style.

Witches Night Out

Date: Wednesday, October 1, 2025
Time: 4:00 PM – 9:00 PM
Location: Downtown Livermore

Kick off your Halloween festivities at Witches Night Out in Downtown Livermore. This adults-only event invites you to gather your coven and embark on a magical evening filled with themed cocktails, festive dining options, and exclusive shopping deals. Local shops and restaurants transform the streets into a bewitching wonderland, creating an enchanting atmosphere for adults to explore the city. If you're looking for a unique night out in the Tri-Valley with a Halloween twist, Witches Night Out is the perfect way to start the season.

Halloween Brew Crawl

Date: Saturday, October 25, 2025
Time: 5:00 PM – 8:00 PM
Location: Downtown Pleasanton

Downtown Pleasanton transforms into a haunted hub for the Halloween Brew Crawl! Sample more than 25 craft brews from local breweries, enjoy live music, and show off your best costume. This adults-only event starts at the Museum on Main, where you'll receive a commemorative glass, wristband, and map to navigate the spooky crawl. It's one of the most unique Halloween events in the Tri-Valley for adults who want to mix fright with festive drinks.

Hallo-Wine Party Tour

Date: Saturday, October 25, 2025
Time: 6:00 PM – 9:30 PM
Location: Livermore Wine Trolley

Experience the Tri-Valley's best wineries on the Hallo-Wine Party Tour! Enjoy tastings at Murrieta’s Well, McGrail Vineyards, and Wood Family Vineyards. Each stop pairs a full wine flight with Halloween-themed treats. Costumes are encouraged, making this adults-only trolley tour both festive and fun. It's the perfect way to savor the flavors of the season while celebrating Halloween in the Tri-Valley.

The Witching Hours

Date: Wednesday, October 29, 2025
Time: 6:00 PM – 8:30 PM
Location: Concannon Vineyard, Livermore

Concannon Vineyard hosts The Witching Hours, a magical Halloween evening for adults. Enjoy a complimentary welcome pour, costume contests, karaoke, candy grazing, and creative wine cocktails. This Tri-Valley event combines spooky fun with vineyard elegance for an unforgettable night. Whether you're a wine enthusiast or just looking for a unique Halloween experience, The Witching Hours offers something for everyone.

Zombie Brew Crawl

Date: Saturday, October 11, 2025
Time: 1:00 PM – 4:00 PM
Location: Downtown Martinez

Get ready for a spooky sip-fest at the Zombie Brew Crawl in Downtown Martinez! Stroll the streets in full zombie attire while sampling more than 30 craft beers, and compete for prizes for the best solo or group costumes. Perfect for adults looking to blend Halloween thrills with a love of craft brews, this event is one of the East Bay’s most fun and unforgettable Halloween experiences.

Pirates of Emerson Haunted Theme Park

Dates: September 26 – November 2, 2025
Location: Alameda County Fairgrounds, Pleasanton

For thrill-seekers, the Pirates of Emerson Haunted Theme Park at the Alameda County Fairgrounds in Pleasanton is a must-visit. This premier haunted attraction features multiple haunted houses, interactive attractions, and live entertainment, making it one of the scariest and most immersive Halloween experiences in the Tri-Valley. It's the perfect destination for those looking to embrace the full Halloween spirit.

Conclusion

With so many exciting adults-only events happening throughout the season, the Tri-Valley truly comes alive every October. From haunted bar crawls and spooky wine tours to costume contests and immersive theater experiences, there’s no shortage of ways to celebrate Halloween in style. Whether you’re looking for a magical night out in Livermore, a craft brew adventure in Pleasanton, or a spine-tingling experience in Martinez, the Tri-Valley has something for every thrill-seeker and Halloween enthusiast. Don your best costume, gather your friends, and explore the many ways the Tri-Valley transforms into a festive, spooky playground each fall—it’s an unforgettable season you won’t want to miss.