Dates and times are subject to change by organizers. Please visit the organizers’ website for the latest information.

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halloween

Events for Saturday, Oct 31, 2026

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Orange-and-Green-Playful-Cartoon-Trick-or-Treat-Instagram-Post-1

Trick or Treat at the Old Schwamb Mill

Old Schwamb Mill 17 Mill Lane, Arlington

Celebrate Halloween with a little history and plenty of spooky fun at the Old Schwamb Mill. Bring the whole family for a festive visit to our historic mill, where trick-or-treaters […]

Free

crmii frankenstein

Frankenstein: What does it mean to create?

Charles River Museum of Industry & Innovation 154 Moody St., Waltham

Join us for a Frankenstein-themed story time and activity hour. This hands-on drop-in program is designed specifically for younger mad scientists to engage with questions of invention and creation. Activities: […]

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Bike Together Waltham — October group ride

Waltham City Hall 610 Main St., Waltham

Our next ride is Halloween! Next Saturday at 3:00, meeting behind City Hall. Costumes and bike decorations are welcome. We will ride around five miles through Waltham's cemeteries. See you […]

Free