One enters the coppermine after getting the OK from Dept of Conservation, and so we entered the 40 metre long tunnel. One must crouch as it is not more than 1.5m high. We saw a blue penguin and its nest in the darkness, as well as a human skeleton. Out of respect we left the skeleton alone, but did observe, with the help of torches that it had a medallion around its neck. It was hard to read unless one got right up close, but eventually we made out what it said...