The super-fit Hirschberg family are set to rack up a grand total more than 280km of swimming, cycling and running as mum, dad and their two sons all compete in the Kellogg's IRONMAN 70.3 Taupo on Saturday.
Based on a beef and sheep farm near Ashurst in the Manawatu, it was mum, Cheryl, who kick-started the passion for long distance triathlon racing by entering her first IRONMAN 70.3 event three years ago.
Since then her husband Steve and two sons Bryce, 20, and Darren, 18, have followed her lead but it will be the first time the quartet will have competed in the same IRONMAN 70.3 event in which athletes tackle a 1.9km swim, 90km bike and 21.1km run.
"I started the trend and everyone else seemed to get on the train," admits Cheryl, 52, who dabbled in triathlon for three years or so before making her long distance triathlon. "We are a family that likes to keep fit and active and enjoy the best that New Zealand has to offer."
Immediately bitten by the bug, both sons also quickly developed a passion, so much so that they have each been given their own triathlon coach for their Christmas and birthday presents.