Recruits on next year's 'SAS: Who Dares Wins' will face a harsh, freezing climate.
SAS: Who Dares Wins to move to sub-zero climate
Producers are seeking locations which will test their contestants even more and are considering a number of countries with sub-zero temperatures.
A source told The Sun newspaper's Bizarre TV column: "The team wants to switch it up by taking recruits to a country which is very, very cold.
“Just being able to exist in the sub-zero temperatures will be hard enough — never mind taking on the brutal tasks like ice-water plunges, snow treks and endurance challenges.
"They intend it to be the most hostile and unforgiving warfare environment yet.
"There are a number of locations on the table and nothing is yet set in stone.”
However, before the Channel 4 show moves to a colder climate, the latest edition, which airs on January 4 on Channel 4, will take place in the Vietnamese jungle.
Instructors Mark 'Billy' Billingham, Rudy Reyes and Jason 'Foxy' Fox are set to be joined by Chris Oliver, with Billy taking over from Rudy as head of the team.
Billy said: "There is nobody better placed than myself to lead the recruits through this treacherous environment."
A celebrity version of the show will also follow next year, starring Matt Hancock and James Argent, before the show takes on a new sub-zero location.