I despise the fencing off of everything at Poldice. I also saw no reason for choking allot of the shafts there, all they had to do was fence and clwyd them.
I remember in 2001 there was a nice open shaft not far from the one in the lower part of the valley, pretty much overnight it was filled in and flattened over like it was never there. It was a waste of public money and I saw no reason at all for it.
I see it as such an insult to the men who worked so hard, giving their own lives at times to sink the shafts and who were so skilled in their job that they could do more with a pick and shovel than most people these days can do with a JCB.
I see the shafts as being just as, if not more, important than the buildings.
Kids are going to have a hell of a time wondering what all these castle like buildings are with lots of park benches and pretty footpaths around them are. I can't count how many times I have been to an engine house filled with excitement only to see a blank patch of grass infront of it without so much as a shaft marker or plaque to say the shaft was ever there. Leave the damn shafts there, cover them with a grate or fence them if you have to, just don't erase it because some kid or fat tourist might be dumb enough to climb the fence and fall down it!!