I had some school friends that would love to pull off something like this. Probably still would if the opportunity came up.

In fact I suspect my cousin's pulled a similar trick on me when I was young. There was a burned out abandoned house walking distance from their house. And we found some tapes in a hole in the ground near a tree. Kinda seemed inspired by Blair witch project. The whole exploration seems like they were trying to hype things up a bit... One day when I see them again for a beer, I will ask. Haha