Not content with undergoing a foot race that fully acknowledges it's no fun - the Mount Panorama Punish - the Edmunds family is aiming to conquer something even bigger.
The Gunnedah six were thrilled with their Punish results and now have "something crazy planned - more crazy - during the Christmas holidays: 13 running races in 21 days," dad Mick said.
"We were going to the kids' uncle's place in Adelaide for Christmas, so then we started to look for running evens in that area on the way.
"We're pretty sure we're going to go ahead and do that; the only thing is for all of us to complete it, all six of us have to be fit and well at the same time across 13 events across 21 days.
"We're fairly resilient buggers - we can run with an injury if we have to ... it will be an adventure."
Mr Edmunds, wife Erin and their children Brandon, Max, Georgie and Sienna - ranging in age from 20 to nine years old - started running a few years ago as a healthy family activity.
Now, it's become a passion and they've done many races, often returning and improving on their results.
The Mount Panorama Punish is one example; Mr Edmunds and Brandon ran it last year and improved their times by minutes this year.
"We were hoping to run well and we all ran extremely well; we were hoping to have six people finish and get a finishers' medal," Mr Edmunds said.
To do that, they had to make the top of the 174m-elevation course in less than 30 minutes - don't make that and you're disqualified - and the whole 6.2km course in less than an hour.
"We just loved the experience; we're just that bit fitter and stronger," he said.
"I was very impressed with the others - they were a bit worried about getting picked up by the bus, but ... they all did it quite easily."
Mr Edmunds said he was "really pleased" with Brandon's guts - "pretty impressive for a special needs fella".
"There were 808 people [who] all start together, all charge up the mountain like crazy ... Brandon was the 103rd person to the top," Mr Edmunds said.
"To have the heart and the mental strength to not stop and walk - it's an extra-steep hill, everything says 'stop and walk' - is amazing.
"A few people around him ... stopped for a breather. He just kept going."
The family's 13 runs will include one on Christmas Day in Adelaide and two Parkruns in Melbourne on New Year's Day.
"It's a bit crazy, but the kids get to meet a lot of different people ... We love what our children are achieving."