I haven't seen this before! Though there's been an explore at least once a year posted on here which I've seemingly never noticed until now, haha!
Looks like a pretty interesting site and photogenic site. Yes, it would be helpful to know some selected history, what your explore was like and how it unfolded, plus your observations of the site and its state compared to how it appeared in previous posts from years gone by. That sort of thing.
I'm having a Google of the place now and wondering whether I'll have time to head up myself as it's got the obligatory housing development scheduled, so thanks for putting this on my own (slow to update) radar!