Insignificance... or Rotten eggs, Part 2

As we were touring north of Rotorua, we decided to explore NZ only live volcano; it is a 1h30 boat trip to White Island which gets its name from the plume of white smoke the volcano spits constantly.
It looks more inhospitable as the boat approaches, and it is difficult to understand how some bright sparks a hundred years or so ago thought they could just mine the sulphur on the island and ignore the fact they were living on an active volcano; it all ended in tragedy - of course - as anybody with a bit of healthy respect for nature could have predicted...