The Grand Old Duke of York famously marched his army up and down a hill - but his exploits pale in comparison to ex-Marine Greg McKenzie.
The 34-year-old from Grangemouth will attempt to reach the summit of Ben Lomond 10 times back-to-back in less than three days to raise cash for veterans who lost limbs while serving overseas.
Greg will begin the gruelling 75-mile endurance test tomorrow (Friday), accompanied by good pal Stevie Scott.
The duo, both police officers, will hike a total height of 31,960ft - almost 3000ft more than the height of Mount
It’s a daunting challenge, but one which Greg is confident they can complete.
“We didn’t want to do something as simple as walking the West Highland Way,” he said. “As far as we know, something like this has never been attempted before on Ben Lomond.
“We will have very little rest. We’ve planned four hours for each climb, but we reckon we can do it in two-and-a-half hours which will allow some time to sort our feet out.
“Some Marines I know were shocked when I explained what we were going to do.”
They will be accompanied on each climb by an ever-changing crew of supporters and well-wishers. But their primary motivation will be supporting the Royal Marines Charitable Trust Fund.
Greg, a former Commando who served in Iraq, was shocked to learn that some of his friends injured in battle faced huge bills to buy prosthetic limbs robust enough to allow them to lead active lives.
“Although insurance covers prosthetics, these are very fit men who want to be able to carry on doing things like completing marathons,” he added.
“But unfortunately, the cost of prosthetics can prevent this from happening.
“The trust fund is the main source of help for these injured men, both financially and mentally.”
As serving police officers who work shifts, Greg and Stevie have not been able to train together on a regular basis. Instead they have been tackling the southern Highlands and some of the lesser known Ochil Hills on their rare days off.
For further information on the challenge, or to make a donation, just visit www.justgiving.com/ben10everestchallenge.