Hey Norm,
Just thought you might like to know that the Pouto Lighthouse mark you have placed is the position of the current active navigation light, not the no-longer-active kauri lighthouse in the picture and description. The kauri light (the oldest still standing in NZ I believe) is further down the beach at 36deg 23'26.30" S; 174 deg 07' 23.96E. It's in a high res area so you can make out the hexagonal shape.