We welcome visitors daily who just want to come take a look -- absolutely no charge to do so!
No, last time I was there, there was an open area where they had dining tables and you can go to the edge where you can actually have a nice view of the quarry area.
I don't believe so. They have different options. If you just stopped by to get a better idea of what it is then I would say no. There are a few low adventure type activities that could cost.
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