Halloween Bash 2026 — Mountain View, CA

Halloween Bash 2026 — Event Details

📍 Venue: Opal Social Club — 251 Castro Street, Mountain View, CA 94041
📅 Dates: Saturday, October 31, 2026
🕐 Hours: TBA
🎫 Price: Paid admission (varies by day & pass level)
👶 Ages: 21+ Only
🚗 Parking: On-site / street parking — check the official event page for details
⏱ Plan for: 2–3 hours
🏢 Organizer: See official event page

🎃 Local Insight Ratings

Best for: Groups of friends, couples, and anyone who wants to dress up and dance all night.

💡 Know Before You Go

🎃 Arrive before 11 PM — lines peak late; early arrival means faster entry and cheaper drinks.

🎃 Buy early-bird tickets — prices climb in tiers and the final tier often sells out before Halloween weekend.

🎃 Plan your costume for comfort — you’ll be on your feet for hours; epic costumes are great, painful shoes are not.

🎃 Sort transport in advance — rideshares surge on Halloween night; book early or designate a driver.

🎃 Bring ID — 21+ events check at the door, no exceptions, even with a ticket.

❓ Frequently Asked Questions

How much are tickets?
This is a ticketed 21+ event with tiered pricing — Paid admission (varies by day & pass level). Early tiers are cheapest and always sell first.

Is there a costume contest?
Most large Halloween parties run one — check the event page for categories, judging time, and prizes so you can plan accordingly.

When and where is Halloween Bash 2026?
Halloween Bash 2026 takes place Saturday, October 31, 2026 in Mountain View. Doors and set times are on the official event page — arrive early, lines build fast.