It is easy to make excuses like, it's too hot, it's too early, I am tired or a number of other things.

Izzi Griffin is someone who doesn't have any excuses - she just gives it a go.

She travelled to Birdsville on July 2 to complete the Big Red Run race for a diabetes cure.

She said there was no denying it was a tough week mentally and physically but it was all worth it in the end.

She said her hard work mentality was a theory that could be applied to everyone.

"A little bit of hard work can get you a long way," she said.

"If you want to do something, anything it is possible."

She said regardless of what the activity was, all things were possible when you focused.

Ms Griffin said the Simpson Desert was the harshest she had ever encountered.

The Big Red Run is a six-day 250-kilometre stage race starting and ending at the Birdsville Pub.

Ms Griffin said day three was the hardest for her.

It was the third marathon in a row.

She said at 20 kilometres in, she just wanted to sit down.

She said she knew she had run out of glycogen and needed help from the medics.

After receiving assistance she was ready to conquer the rest of the stretch.

Ms Griffin said the race had attracted an astounding spread of ages and backgrounds.

She said some people raced ahead trying to beat their personal best and their were other people who just hung at the back.

She said the youngest person to partake was 18 and the eldest was 68.

"It was brilliant to see that people of every calibre could do it," she said.

Ms Griffin said each night brought motivational speakers along with bitterly cold temperatures.

She said they shared stories of triumph in the face of adversity.

Ms Griffin said the run was an opportunity to improve the lives of people with Type One diabetes.

She raised more than $6500, with donations still coming in.