We were near Whanganui yesterday when three large military aircraft flew low and slow in a sweeping arc ahead of us. I was slow to take a photo. 😒

Turns out it was part of a farewell tour:
To mark the [official retirement] of the [RNZAF C-130H Hercules] fleet it has recently carried out flypasts over Northland and the central North Island.
Via RNZAF C-130H Hercules fleet retires after 60 years of service - New Zealand Defence Force.