Haunted Castles On Halloween
I can't say I would ever go on such a trip but apparently many people do and they really enjoy it. They don't all get to see ghosts of course but at the very least they can say they've visited a castle that's reputed to be haunted.
Chillingham Castle is one of Britain's most haunted castles and offers public tours of 'haunted areas of the castle and grounds'. It's also in one of Britain's most notable counties - Northumberland. If you're ever in the area it's well worth considering. For more information go to the castle's own official website and page.