Once upon a time I raced at Action Park (very slowly I might add!) and it was a pretty big deal back then (late 70s/early 80s). I think I was even Competition Secretary of the club for a couple of years if I remember right. It'd be a real shame to see the club fold. I hope that a few people get off their backsides and help out.
I have had the dream of getting back there to race one day, but I guess there's even less chance of that now...
I have a video of a race there when I rode a PE250 in the Trailbike Class against a few of the local lads, I'll have to see if I can figure out how to digitize it and post it up!