great report, without all the jovility of holiday makers it looks like some kind of army base/prison camp though!
As I was looking at the photos, I thought there was something "not quite right", aside from the general dereliction. I think you've nailed it.
Years ago I had cause to visit a permanent fairground, in the course of work. It was fairly early in the morning and although all the rides were set up and most of the stalls were unlocked, with one or two fairground staff pottering around, all the bright lights were off. Nothing was moving. It's very eerie finding yourself practically alone in a place that you associate with crowds of people enjoying themselves.