As far as ultra-running goes - it doesn't get much bigger than trying to cross Canada. But that's the goal Kiwi Jon Nabbs set for himself all the way back in May.
He started the 7500-kilometre journey in St John's Newfoundland, and has run through six Canadian provinces, the equivalent of about 130 marathons and six pairs of running shoes on his way to Vancouver.
His uber-endeavour was prompted by losing both parents to cancer. First, he walked the length of New Zealand.
Then he settled on an even bigger challenge.
He runs in a superman suit - now with a woolly jersey as the temperatures plunge to below-zero. He has no support crew - just a pram he's nicknamed 'Shania'.
Along the way he's encouraging people in both New Zealand and Canada to donate to child cancer charities. He joins Kathryn to detail the highs and lows of the journey so far.