Cyclone Cook brought with it pounding rain, extreme winds and walnuts.
Thousand of walnuts have washed ashore at Mount Maunganui today.
Niwa climate scientist Nava Fedaeff was walking her dog along the Omanu section of the beach when she discovered the walnuts at the high-tide mark.
"Being a climate scientist, I always love going to the beach after a storm. There's always something interesting to be found," she said.
"The whole way down there were walnuts. I would say there were thousands."