Katie Sarah has hit 50, but the only way you'll find her settling in for a night of Netflix at home is to while away the hours of boredom on her cardio machine.
She is currently in intensive training for her next penultimate challenge in an attempt to reach a milestone that has been 12 years in the making.
The adrenaline junkie from Adelaide will fly off on Tuesday to Santiago in Chile, before setting off on an 111-kilometre trek to the South Pole.
Katie Sarah stands in front of Lhakpa Ri, a mountain expedition at Mount Everest
Dropped off by a plane with seven other strangers, she hopes to average 20 kilometres a day and finish the trek within a week.
She said it won't be too dangerous... hopefully.
"It's the weather and the remoteness, so if you're down on the ice and you're a long way from anywhere and something does go wrong and you injure yourself, I mean you could be a klutz and fall over your own skis, twist, break something," she said.
"Then if the weather has come in and they can't come and get you out, then absolutely, that's a danger."
Should Ms Sarah successfully negotiate the trek, a similar venture to the North Pole awaits her next year.
If that is also successfully negotiated she will become the first woman to complete what's known as the "Grand Slam Seven-Seven", that is climbing the seven tallest mountains and seven tallest volcanoes on each continent, plus the last degree to both poles.
But the Adelaide resident was pretty keen to talk down the looming world-first that began in 2006.
"Different locations, different people, it's all about the journey and the experience of each peak, rather than ticking boxes," she said.
But when pushed further, Ms Sarah did agree that her achievement could spur other women on.
"I honestly believe that almost all of what I've done, there's no reason why other women couldn't or wouldn't or shouldn't do it so, if others are inspired to go and climb some mountains, that would be wonderful," she said.
The charity worker and adventure travel organiser said climbing Mount Everest was among many challenges on her way to the world mark.
Addicted to the adrenaline game
More than a decade of training and climbing has put her body under immense pressure.
But an ankle injury picked up in a rock climbing accident in the Adelaide Hills has been her worst injury, with a strong team a catalyst in keeping everything sound.
"It's been pretty good, I do have a team of medical experts, physio and an orthopaedic surgeon, he fixed my ankle for me and all that sort of thing," she said.
Katie Sarah and her team during a climb at Mount Everest
"But all in all it's really very good considering how much work I've put all of it through, how much thrashing my body gets, it's really holding up."
Ms Sarah is quite literally addicted to the adrenaline game.
Once she finishes her South Pole trek, she hopes to run the route of the Antarctic Ice Marathon before the plane picks her up again — just because she can.
And while she might have passed the half-century mark and be about to set a new world mark, Ms Sarah said she had no plans to slow down after next year.
Then I'm sure at some point I will have to rein it back a little bit, but no, there's still some things there, one more ironman maybe."
Ms Sarah hopes to be back in Adelaide for Christmas.
This article first appeared on https://www.abc.net.au/news/ . The original can be read here .