Adventure play destination William’s Den is bringing back its immersive family Halloween experience, Trick or Treat Street, with a brand-new interactive mystery.
Running from Saturday 24th October to Saturday 31st October 2026 at Castle Farm near North Cave in East Yorkshire, the event combines live theatre, Halloween activity stations, and story-led puzzles. Designed to offer seasonal fun without being overly scary, this year’s narrative casts visiting children and parents as detectives tasked with solving the case of the village’s missing magical chime.

Visitors will explore an outdoor maze set within the venue’s maize fields, meeting cast members across the fictional village of Trick or Treat Street to uncover clues and solve riddles. Every participating child will receive sweet treats along the route.
To mark the launch, William’s Den is hiding 30 bells in public locations across Yorkshire. Families who find a bell, scan its QR code, and share a photo on social media will receive a 10% discount code for event ticket bookings.

In addition to the main village adventure, the site will feature a Detective School skills area, a Monster Disco, seasonal photo opportunities, and autumn food and drink options. Fancy dress is encouraged, with costume prizes awarded daily.
“Every year we love creating a brand-new adventure for families, and this year’s detective mystery is our most interactive yet,” said Tor Carver, Co-Founder and Creator of William’s Den. “Trick or Treat Street is all about making magical family memories together. It’s spooky without being scary, packed with laughter, live entertainment and surprises.”
Daytime and evening sessions are available throughout the week, and tickets are on sale on the William’s Den website.
Planning your spooky season itinerary? Check out our guide to the best Halloween events in Yorkshire for families.

