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Halloween in Lynn: events, trunk-or-treats and trick-or-treat hours

A compact guide to confirmed Halloween activities in Lynn this year: trunk-or-treats, a pet costume contest, a museum night and the Dungeon Rock story.

1860 print of Dungeon Rock in Lynn Woods: visitors on a rocky hilltop with a flag and a small shed over the tunnel, with a portrait of Hiram Marble above.
Dungeon Rock in Lynn Woods, an 1860 print with a portrait of Hiram Marble. Photo: Popular Graphic Arts, public domain, via Wikimedia Commons.

This guide lists the Halloween happenings in Lynn with confirmed dates and times, from organized trunk-or-treats to a pet costume contest and a museum evening.

It also covers the Dungeon Rock pirate legend and the current status of city trick-or-treat hours.

Lynn Parks & Recreation: Manning Field Trunk or Treat

Lynn Parks & Recreation plans a 2nd Annual Trunk or Treat at Manning Field on Saturday, October 31, 2026, from 1:30–3:30 PM.

It takes place at Manning Field, 76 Locust St, as a family-friendly alternative to door-to-door trick-or-treating.

Centerboard Community Trunk or Treat

Centerboard’s Community Sector is running a Community Trunk or Treat in Lynn on Friday, October 30, 2026, from 4:00–6:00 PM.

Centerboard has not published a street address for it yet; check its announcement before you go.

Downtown Lynn Pet Costume Contest

Downtown Lynn Main Streets is hosting a Downtown Lynn Pet Costume Contest on Saturday, October 31, 2026, from 11:00 AM–1:00 PM in Central Square.

It is a daytime event for pets and their people, run by the downtown business organization.

Night at the Grand Army of the Republic Hall & Museum

The Grand Army of the Republic Hall & Museum has a ticketed program called ‘Night at the Grand Army of the Republic Hall & Museum’ scheduled for Friday, October 30, 2026.

It is a paid, after-hours program; check the museum for tickets.

Dungeon Rock and the pirate legend

Dungeon Rock, part of Lynn Woods, is tied to a long-running local story about Captain Thomas (Tom) Veale and buried pirate treasure dating to the 17th and 18th centuries.

The tunnel Hiram Marble dug by hand at Dungeon Rock is open to visitors when the weather allows; the site is covered in the Lynn Woods reservation guide for trail and parking details.

Before you go

As of October 11, 2026, the city had not announced citywide trick-or-treat hours.

If you plan to attend an organized event, use the hosting organization’s page for final details; for Dungeon Rock, be prepared for weather-related closures.

For a broader view of other local happenings, check the Lynn events calendar.

Sources: Lynn Community TV (event listing for Lynn Parks & Rec’s 2nd Annual Trunk or Treat); Lynn Community TV (events month listing); Lynn Community TV (events week listing); Visit Lynn Woods; Lynn Museum & Historical Society; Lynn Community TV (Manning Field venue & event page).

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