Trick or Treat Street at William's Den
Interactive Spooky Fun, Detective Mystery, and Adventure Play in East Yorkshire.

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Updated 18th September 2026

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Looking for a magical, non-scary Halloween adventure for little monsters? Trick or Treat Street returns to William’s Den in East Yorkshire for October half term 2026 with a brand-new detective mystery to solve, immersive street theatre, and endless adventure play!

Set outdoors amongst the maize field at Castle Farm near North Cave, William's Den transforms its adventure play park into the fictional village of Trick or Treat Street from Saturday 24th to Saturday 31st October 2026. Now in its fourth year, the experience is specifically designed to be spooky rather than scary, packed with live interactive storytelling suitable for all ages.

What's Happening in 2026 🎃🕵️‍♂️

For 2026, visitors become official village detectives invited to solve The Mystery of the Missing Magical Chime:

• Interactive Detective Storyline: Journey through the village, meet colourful costumed characters, gather clues, and piece together puzzles to crack the case.
• Sweet Treats for Every Child: Collect delicious sweet treats along the street as you uncover clues around every corner.
• Detective School: Sharpen your investigative skills with fun hands-on sleuthing challenges across Denville.
• Monster Disco & Costumes: Dance the day away at the family Monster Disco. Fancy dress is encouraged, with prizes awarded throughout the event for the best family costumes!
• Pre-Event Bell Hunt (10% Off): Keep your eyes peeled prior to visiting—William's Den is hiding 30 bells across Yorkshire locations. Find a bell, scan the QR code, share a picture on social media, and claim a 10% discount code for your tickets!
• Huge Indoor & Outdoor Play: Includes full access to the bespoke wooden indoor Den and extensive outdoor adventure play structures.
• Seasonal Food & Drink: Wood-fired pizzas, autumnal treats, and warm drinks served at The Kitchen.

Photo Gallery

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Plan Your Visit 📅

Essential visitor details for Trick or Treat Street 2026:

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Tickets & Booking

ADVANCE BOOKING REQUIRED

Tickets include full entry to Trick or Treat Street, all detective activities, and play areas. Book early online via williamsden.co.uk for best prices.

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Event Dates & Sessions

Saturday 24th – Saturday 31st October 2026
• Daytime and evening sessions available throughout October half-term.

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Fright Factor

Spooky without being scary! Tailor-made for toddlers, pre-schoolers, and primary school-aged children.

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Food & Refreshments

The Kitchen serves wood-fired pizzas, hot family meals, coffee, and seasonal autumn food and drinks.

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Visitor Tip

Dress the whole family in Halloween costumes for the chance to win prizes during the event, and wear sturdy outdoor footwear for exploring the outdoor maize field area!

Getting There 🗺️

📍 Venue Location:

William's Den, Castle Farm, Wold Hill, North Cave, East Yorkshire, HU15 2LS

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🚗 Driving & Parking

Conveniently located just off the A63 at North Cave (between Hull and Leeds/M62). Free parking is provided on site.

🚆 By Train

The nearest railway station is Brough (approx. 10 minutes by taxi), connecting directly to Hull, Leeds, and York.