I will just give you 4 main photos on the way to the Coralmandel Peninsula from Auckland. This is the Hauraki Plains.
You drive straight for many miles over peat under the roads. You get hidden bumps under the surface. It could easily flood here and a lot of the land here is rural farmland.
In the distance, you see the Coralmandel ranges
I have more pictures but a lot look like these. More information and photos another time.