Getty Images/Max Mumby

Here's what he'll face on the record-breaking trip. 

Talia Avakian
November 17, 2017

Tennis great Andy Murray isn't the only one in the family who is cool under pressure. 

Murray's brother-in-law Scott Sears, 27, will brave temperatures as low as 58 degrees below zero in an attempt to become the youngest person ever to reach the South Pole, unsupported, on a solo expedition. 

Sears, a British Royal Army lieutenant, set off Friday on the journey that will take him 685 miles from the edge of Antarctica to the South Pole.

In addition to deadly cold, he’ll face challenges that include avoiding deep cracks that can be hidden under thin layers of ice and winds that can reach 150 miles per hour.

Sears' plan is to ski 10 hours a day in blocks of two hours at a time. If weather conditions permit, he hopes to travel 25 miles a day.

He’ll be wearing a compass on his chest as the high winds and low temperatures in Antarctica can lead to white outs, making it tough to know which direction to head in.

Sears will also have nearly 200 pounds of supplies with him, including one sled and two skis, which he will carry throughout his journey. He expects to burn anywhere from 7,000 to 9,000 calories a day. 

...and so it begins for Scotty of the Antarctic! I'm not going to try and replicate the man-beasts witty/borderline inappropriate sense of humour, so thank the lord he'll be sending on a blog post every day, here is a snippet: • Punta Arenas to Union Glacier • The alarm went off at 0430 and I frantically started throwing my clothes on, I wasn’t due to be picked up until 0520 but an irrational fear of being late for anything had me storming around the room (apologies to the couple below). I briefly considered not showering, going for the logic that I’m not going to get one for over 6 weeks so what difference does a day make, I decided instead to savour the luxury of running warm water and have one last cleanse. ALE picked me up and it was onwards to pick up all the other passengers from various hotels around Punta Arenas, it’s an incredibly busy season in Antarctica with the Iluyshin jet being maxed out at almost 60 passengers, all on their own various adventures, from skiing unknown antarctic peaks to visiting the penguin colonies. There is obviously no terminal by the blue ice runway of Union Glacier so we had to leave Chile in full polar gear, a rather ridiculous sight when going through the civilian terminal at Punta Arenas Airport. When the metal detector went off as I walked through I was gutted at the thought of having to tear off my multiple layers and endless metal zippers, thankfully it turns out attacks on penguin colonies are very rare this time of year and I was waved through without the need for any intravenous searches. • TBC via link in bio 🕵🏻‍♀️🕵🏻 . . . #antarcticgurkha #JPLive #OneSimpleChange #HealthyLiving #shackleton #theshackletoncompany #InspiringHealthyLiving #MakeADifference #antarctica #southpole #ski #worldrecord #everest #expedition #adventure #outdoors #camping #tent #greatoutdoors

A post shared by Scott Sears (@antarctic_gurkha) on

Lewis Clarke, from the U.K., holds the Guinness World Record as the youngest person to trek to the South Pole for his journey in November 1997 at age 16.

Last year, Luke Robertson, 30, became the youngest person from the U.K. to complete a solo, unassisted, and unsupported trek to the South Pole, according to BBC. Categories for South Pole trek records can vary greatly depending on whether explorers are getting wind assistance and whether they're walking, skiing or using another mode of transportation.

Related: 12 Facts You Didn't Know About Antarctica 

Shears is attempting the record-breaking trip to raise £25,000 ($33,047) for the Gurkha Welfare Trust, a charity that supports veterans of his army unit. He will be regularly providing updates on his journey on his blog.

In November of 2013, Prince Harry, who was a Royal Army captain,  and "True Blood” star Alexander Skarsgard joined 12 wounded soldiers on a 208-mile ski trip to the South Pole, teaming up with the Walking With the Wounded South Pole Allied Challenge for the trip.  

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