I can only tell you of an occasion, years ago, when my husband, myself and our two sons stayed in a holiday cottage on Dartmoor over Christmas and New Year. Certainly we know a witches covern meet there quite regularly, some of our family who live in the area stumbled on them one evening by mistake, and certainly we knew, by the number of rams skulls, etc., that our landlady had lying about her bungalow, that she was - if nothing else - a firm believer.
Anyway, the hard standing for parking the cars was about 50 yards from the cottage, and being a regular on the moors I can honestly say nothing there has ever frightened me before, but my eldest son and I were so frightened when we parked the car each night, that we ran the fifty yards as if the hounds of hell were after us.
Years later I discovered, too, that both my sons were sly smokers in those days and were popping out to the utility room after dark to have a quick puff, but apparently it was only sheer bluff that kept them out there. They were both so frightened that they didn't enjoy a single draw on their cigarettes!
We've never stayed in that area since, and everywhere else we've stayed I've wandered about in the dark with no problems, but even now, when we visit that place, there is a strange uncomfortable feeling about it. What was more, the night before we were due to leave the place a glass coffee table, placed in the middle of the room and with nothing on it at the time, exploded at about two in the morning and frightened us out of our wits!