This is the main machine hall at New Zealand’s largest hydroelectric power station. Not the most photogenic subject I captured that day, but an amazing engineering achievement for the country. This hall, along with the rest of the power station, was excavated from solid granite rock, 200 metres below Lake Manapouri. Built between 1964 and 1971. The seven blue machines are the generators at the top of each seven turbines that extend far below the floor.