We had " Haunted Maize" in the country, just outside of town.
A normal crop of maize, (intended for stock food ans cornflower when harvested) was planted. Then they went through and made a maze in the corn.
When the corn was high enough, during the day, they would have a " Amazing Maize Of Marton". And people could go and get lost, as usual.
Once a week-ish, a gang of guys got dressed up as " the chainsaw killers victim" " the headless ghost, complete with head under the arm," etc.
The number of Big Heroes that came out with wet patches was incredible.
Hope they have fun on their ghost hunt.