Never been myself but I've heard mixed things from people who've done the official overnight tours vs just weeknights generally. My main question is whether the "activity" people report there is genuinely unexplained or just the building itself doing what old derelict buildings do - creaking, drafts, that kind of thing.
A mate of mine went a couple of years back and said the tour guides were a bit too eager to point out "hotspots" which always makes me suspicious. Like if someone tells you a room is haunted before you go in, your brain is already primed.
Has anyone gone without doing one of the guided tours? Or done any kind of independent documentation there? Genuinely curious whether the EVP recordings people get there hold up to any scrutiny or if its just audio pareidolia. Would love to hear from people who went in properly sceptical rather than hoping for something to happen.