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Halloween events in Thornbury

Thornbury does Halloween properly: haunted houses that actually scare you, pumpkin patches worth the drive, and trick-or-treat streets the kids talk about all year. Here's what's on — confirmed dates first, then the annual traditions to watch for.

Annual traditions — dates TBA

These happen every year; exact dates are announced closer to the day.

Haunted Cemetery Mystery - L.E. Shore Library (Thornbury)

Dates TBA (Fri Oct 30, 2026, 6:00-7:30pm; a haunted-cemetery escape-style mystery at the L.E. Shore Library for tweens & teens; free, registration required (groups of 3-4)) · Haunted Cemetery Mystery - L.E. Shore Library (Thornbury) More info

Nightmare on Marsh - Haunted Houses & Haunted Maze (Clarksburg)

Dates TBA (Oct 9-Nov 1, 2026 season in Clarksburg village (village decorating from Fri Oct 9; calendar runs through Nov 1); haunted houses and a haunted maze centred on the Marsh Street Centre; full schedule and ticket info at nightmareonmarsh.ca) · Nightmare on Marsh - Haunted Houses & Haunted Maze (Clarksburg) More info

Nightmare on Marsh - Monster Ball & Pumpkin Walk (Clarksburg)

Dates TBA (Oct 9-Nov 1, 2026 season in Clarksburg village; family side of Nightmare on Marsh includes the Monster Ball, the Pumpkin Walk, pumpkin carving and trick-or-treating; full schedule at nightmareonmarsh.ca) · Nightmare on Marsh - Monster Ball & Pumpkin Walk (Clarksburg) More info

Spookapalooza Storytime - L.E. Shore Library (Thornbury)

Dates TBA (Fri Oct 30, 2026, 11:00-11:30am; drop-in Halloween storytime for ages 0-5 at the L.E. Shore Library — spooky stories, songs and a monster mash; costumes encouraged; free) · Spookapalooza Storytime - L.E. Shore Library (Thornbury) More info

WAG-O-WEEN - Thornbury BIA

Dates TBA (Annual October Halloween event in downtown Thornbury hosted by the Thornbury BIA; dog- and family-friendly, costumes encouraged for dogs and their people (2026 date announced via the Thornbury BIA / Blue Mountains Chamber)) · WAG-O-WEEN - Thornbury BIA More info

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Good to know

Haunted houses sell out on the last two weekends — book ahead, don't walk up.
Pumpkin patches are best on weekday mornings: smaller crowds, better light for photos.
Bring cash for the farm stands; card readers and corn mazes don't always mix.
Check age guidance before bringing small kids to a haunt — 'family fright nights' are the gentler pick.

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