The thought of participating in one of the world's largest fun runs intimidates most people.

But for Rod McDonald, he has not only taken on the challenge to endure through the race itself, but he is also toughing it out barefoot.

He said he has always had an interest in sports and participating in fundraiser events and after hearing about a friend who had been diagnosed with Motor Neurone Disease (MND) he decided he would run in the City2Surf and raise money for the cause.

"At first I didn't sign up to run in a kilt, in fact I've never worn one before," he said.

"But I saw a review on a running kilt and then thought I'd do something a bit different and use it as an incentive to raise money."

So far, the incentive has worked with $1300 raised.

He said the response from people has been positive with most curious to know if he will really run in just a kilt, but more are concerned about running barefoot.

"About 80,000 people run in the competition it's not that difficult, anybody can do it really," he said.

He also said he doesn't like wearing or running in regular shoes, as he finds them too restricting on his feet.

Instead he wears a barefoot sports shoe called Vibram Five Fingers.

"There are so many little bones and muscles in feet that I don't like regular shoes," he said.

which helps strengths muscles by acting like webbing for toes and feet.

"There are so many little bones and muscles in feet that I don't like regular shoes," he said.

"But hopefully I can run faster barefoot anyway."

Despite the outcome on Sunday, he admitted he will continue to pursue his passion for sports with the next event held in three weeks time, the Husky Half marathon.

"If I enjoy running in it a kilt, I'd do it again," he said.

"I'd like to run in a marathon before I die."