Prince Harry, Patron of Walking With The Wounded South Pole Allied Challenge, is taking part in a 24 hour cold chamber training Exercise with the British team.
He has joined the team inside a special chamber which will simulate the extreme conditions they will face in the South Pole.
The Prince will test equipment and practice the routine tasks such as setting up the camp and skiing.
The chamber has a variable temperature and wind controls replicating the -60 degrees the Prince would face in the South Pole.
More top news
Police are investigating the death of a teenager who died shortly after an amateur boxing match held last night.
Labour leader says the UK "should not be afraid of debt or borrowing" as he urges the government to "stop dithering" and start investing.
A fundraising page for a Westminster terror attack victim has been taken over by JustGiving amid fears it was set up by a fraudster.