EXTREME SPORTS: They're the Rockhampton father and son duo set to embrace one of the toughest mental and physical challenges around.
Peter and Jack Busby will join eight teammates to take on Tough Mudder at Woodford on Saturday - and they can't wait to run, jump, climb and crawl their way through the gruelling 20km obstacle course together.
Jack, 23, completed the event last year and his enthusiasm for it inspired Peter, 51, to give it a go.
"Once you do it you're hooked and that's what everyone says,” Jack said.
"It's not about who finishes first; it's just about the experience and being able to say you've done it.
"When I told dad I was going again he said it would give him something to work towards and train towards and it's really motivated him to get fitter and get back into training.”
Peter started preparing for the monumental challenge about five months ago, gradually building up his exercise regime which includes swimming laps of the southside pool, which he has dubbed his "lanes of pain”.
"I thought it would be a good thing to do with the young fella before I got too much older,” Peter said.
"I started with swimming one lap and then I was up to 50. I've been doing a lot of bike riding, treadmill running and small weights - enough to get toned up.
"I'm a little bit nervous but I am looking forward to it.
"Jack's really pumped up for it and I'm determined to make it through with him but I know I'll be pretty happy to get to that finish line.”
As well as improving his fitness, Peter started eating more healthily and has lost more than 10kg.
Jack knows from experience that the event is not only a test of physical strength but mental grit as well. It took his team about four and a half hours to complete it last year.
"It's a 20km run with 18-plus obstacles throughout it,” he said.
"Some of them are pretty intense, especially the electroshock therapy where you have to run through a mud pit that's filled with hanging wires, half of which are electrified.
"As well as that, there's a lot of swinging and climbing over barriers and up ropes.
"It's all about teamwork and you just don't work with your own team, you're all out there to pull each other through it.”
The Busbys are at opposite ends of the age scale in their team, called Witness the Fitness, which is made up of their friends and members of their families.
They will be among about 2000 competitors at this weekend's Tough Mudder, which raises funds for the charity Soldier On.
Jack has long thrived on physical challenges and was a keen sportsman at school, playing a host of sports including soccer, touch football, rugby league, boxing and water polo.
When he moved into the workforce he scaled that back but he always maintained his fitness.
He currently goes to the gym four or five times a week and runs three times.
"I actually feel a bit lost if I don't train of an afternoon. It's become a bit of a habit now; it's just something in my routine that I do.
"Being able to train with dad has been great. We push each other and work off each other.
"This event is so much fun but it's going to be pretty special doing it with dad alongside me.”