Nikki Bradley is aiming to raise over €50,000 for three charities

Irish adventurer Nikki Bradley is aiming to become the first person ever to complete the Four Peaks Challenge on crutches.

Ms Bradley was diagnosed with Ewing's sarcoma - a rare form a bone cancer - in her teens and received a second hip replacement when she was just 26-years-old.

However, after being told by doctors that she would spend the rest of her life on crutches, she decided it was time to embrace her circumstances and start to 'take my life back.'

She set up the awareness campaign ‘Fighting Fit For Ewing’s’ in 2013 and has been setting physical challenges  for herself ever since.

Having already scaled the Sólheimajökull glacier in Iceland, completed a 24km wintertime special forces march in Wales and come within one second of a Guinness World Record in the Netherlands, she has spent the past year training for her biggest challenge yet.

Adventurer Nikki Bradley in training to become the first person to copmlete the Four Peaks Challenge on crutches

On July 21st, the Donegal native will gather her crutches and climb four of Ireland's highest peaks - Carrauntoohil, Croagh Patrick, Slieve Donard and Mount Errigal - all in the space of less than 24 hours.

It is all in aid of charity and you can donate to her campaign here.

"I am fairly confident when I say it will be the toughest thing I have ever done," she told Newstalk.

"I am quite nervous because I can't predict exactly what is going to happen; any number of things could go wrong on the day.

"I am in quite a lot of pain in general and that pain varies day-to-day, so I could wake up in the morning sore.

"If that happens it is going to be nightmare of a day but at the same time, I have to get on with it."

The adaptive adventurer has been in training for over a year now and aims to raise €50,000 for three amazing charities - the Irish Cancer Society, Action Cancer and the Ross Nugent Foundation.

The foundation was set up by Don and Sandra Nugent after their son Ross lost his battle with Ewing’s Sarcoma in 2010.

"That has been a brilliant motivator for me, even during training," she said.

"To make sure that I am ready to make this happen and for it to be a success."

Ms Bradley will be the first crutch user ever to attempt the Four Peaks Challenge - and she will joined by internationally acclaimed mountaineer, Iain Miller.

You can make a donation to her campaign by visiting her GoFundMe page.