A mum-of-two said she felt “really proud” after running a half-marathon in Greenland in freezing temperatures.

Nicky Chisholm, 50, completed The Coolest Half Marathon on Earth in under four hours across glaciers and Arctic tundra where the average temperature is minus 16 degrees Celsius.

Her achievement comes after she spent time training in a specially designed “fridge” to replicate the temperatures she would experience in the run.

Nicky, who lives near Brighton Marina, said: “I enjoyed every single minute. I was absolutely determined to get around smiling because it was the privilege of a lifetime.

“Sometimes you were running and sometimes you were scrambling, it was a really tough course.

“I’ve now come down with some massive blues this week but I had a great team behind me.”

Prior to the run, Nicky had been training for over a week including using the University of Brighton’s Environment Extremes Laboratory. The Laboratory can be used to replicate extreme temperatures such as the low temperatures from the arctic circle.

The field of 80 runners included competitors from all over the world.

After the group met in Copenhagen, she said she felt privileged to be able to speak to some “amazing” people.

The Argus: Nicky, 50, with her medal in Greenland Nicky, 50, with her medal in Greenland (Image: Nicky Chisholm)

Nicky said one problem she faced was dealing with the wildlife on the route, adding that “the guy who started the race had a shotgun on his shoulder” to deal with the possibility of wild animals.

One of her driving forces was her two sons, Calan, 17, and Fin, 14, who were “really proud when I showed them the photos”.

As part of the run, Nicky also raised funds for domestic abuse charity Safe in Sussex and Chestnut Tree House children's hospice near Angmering.

She has supported the two charities several times in the past, including abseiling down a castle.

Throughout her fundraising efforts she has raised over £2,300 for the charities but has said that she wants to reach £2,500. Donations can be made at www.justgiving.com/team/2022greenland.