A perfect activity for a wet, cold day and one that appeals to the whole family. Enough history and mining factoids for adults with lots of hands on for the kids. The actual underground tour is relatively short as it passes through a single tunnel, but there's lots to see & hear. The guide demonstrates the loud (as in cover your ears) "widow maker" drill; explains the "honey wagon"; & extinguishes the lights to create utter blackness before lighting a single candle and then a carbide lamp. The Historic Mill has steps that ascend forever.........too bad you can't climb them!
I especially enjoyed the old movie clips of the Copper Queen parade (c. 1939) and various sports day competitions (including diving; obtacle race; & greased flag pole) in the old Admin Building.