The thought of something bad happening rarely crosses your mind when you're out enjoying something you love. But when you're out in the elements, a great day can be transformed into something from a horror movie in a heartbeat.
I have surfed at Piha for four years and never had any major scares in the water. But late last month, everything went horribly wrong.
After just over an hour in the water, my body suddenly cooled down. I tried to fight my way back to shore, but my strength was running low, and a rip was dragging me in circles.
The wetsuit I was wearing didn't keep me warm because it was more suited for summer temperatures, and I was forced to stay in the water much longer than I intended.
Hypothermia was setting in, and I couldn't even paddle properly because of the loss of co-ordination.