Experience Halloween in a way that only San Francisco can offer—with a festive and free-spirited ride through the city streets. On Friday, October 25, the annual Halloween Costume Bike Ride will take over the city, inviting cyclists of all ages and abilities to join a spooktacular edition of Critical Mass. Starting at 6PM at Embarcadero Plaza, near the Ferry Building, this rolling celebration of bike culture is set to transform San Francisco into a lively parade of costumes, lights, and, of course, bicycles.
Costumes are highly encouraged but not required, making this event the perfect opportunity to pedal alongside caped crusaders, skeletons, and all manner of Halloween characters—whether you’re riding as a ghoul or just as yourself. With no one in charge and no set route, the beauty of Critical Mass lies in its organic, free-flowing spirit. Riders simply meet, mingle, and take to the streets in a joyful, spontaneous display of solidarity on two wheels. And with blinkies and lights illuminating the night, the city will glow with the Halloween spirit as riders wind through its iconic neighborhoods.
Led by Ghost Hosts Maude, Lia, and John, the event is as much about community as it is about cycling. As you pedal alongside fellow riders, you’ll feel the pulse of the city, united in a love for biking, fun, and collective celebration. The route is slow-paced and welcoming, making it accessible to all, and the festive atmosphere guarantees a night of laughter and camaraderie.
Bring your bike, bring your costume, and don’t forget your hydration! And if you’re cycling through the city after dark, glowing lights and blinkies are a must. With the crisp October air and the unmistakable magic of Halloween in the air, this year’s Halloween Costume Bike Ride promises to be one of the most unique and unforgettable ways to celebrate the holiday in San Francisco.
Event Details:
Date: Friday, October 25
Time: 6:00 PM (roll out at 6:30 PM)
Location: Embarcadero Plaza, near the Ferry Building (Market St & Steuart St)
Costumes: Encouraged but not required
Hosts: Maude, Lia, and John
Venue
