Treasure hunters will search for goblins and fairies in a “secret piece of countryside” when a television programme visits Watford.

Garston Manor, in High Elms Lane, will be the setting for Channel 4's Country House Rescue, when producers visit the 19th Century house next month.

There a goblins and fairies treasure hunt will take place for children as part of the programme, which aims to create innovative ways of making money for local country houses.

The treasure hunt was created by Sam Gething-Lewis, of Herefordshire-based Treasure Hunt Design.

Sam left his job as a corporate games designer to create clues, puzzles and games for country houses, holiday companies and hotels.

Sam said: “They asked me to go into Garston Manor and give them ideas about how to make money. They'll be able to use the treasure hunt again and again.

“It's a fantastic opportunity for me because it's quite a quirky product that I sell. I was on site for a day and then I spent a day designing the treasure hunt.”

Garston Manor is inviting members of the public to come and solve a mystery at a free entry event on Monday, July 5, from 4pm until 8pm.

The treasure hunt is aimed at five to 11-year-old children who must be accompanied by an adult. Last entry is at 6.30pm.

The event will be filmed as part of Channel 4’s Country House Rescue, though there is no guarantee of appearing in the final programme.

To book your place, email to laura.harris@betty.co.uk