Prince Harry took part in 24-hour cold chamber training with the British Walking With The Wounded South Pole Allied Challenge team.
A soldier is hoping to become the first double amputee to walk to the South Pole in a team made up of wounded servicemen and women.
Prince Harry has described five wounded soldiers who attempted to climb to the peak of Mount Everest as "extraordinary".
Prince Harry could not resist engaging in some playful banter when he offered his support to a group of soldiers rowing across the Atlantic in a satellite call conversation from Antarctica.
Harry is taking part in Virgin Money South Pole Allied Challenge - a gruelling charity trek to the South Pole, racing with a team of injured British servicemen and women against United States and Commonwealth groups in an expedition organised by the Walking With The Wounded charity.
The group set off on their 300km mission on Sunday but before doing so, Harry found the time to offer his support to the Row2Recovery team ahead of their 3,000 nautical mile race from the Canary Islands to Antigua, which starts on Wednesday.
Organisers of the South Pole charity trek, which Harry is taking part in, said they are shortening the start line to ensure the race is completed by the 15th December.
Today the decision has been taken by Edward Parker, Team Noom Coach Mentor and Co-Founder of Walking With The Wounded, to move the racestart 60km nearer to the South Pole.
His decision ensures the race a safewindow to arrive at the Geographical South Pole by 15 December.
– Walking with the wounded statement
This decision, given that recent adverse weather may well continue, has been considered eminently sensible by the three polar guides on the expedition: Inge Solheim, Conrad Dickinson and Eric Philips.
The expedition is now in the process of being moved by the support vehicle approximately 60km closer to the finish line, which reduces the overall race distance.
[...] Team spirits are high and everyone is working together in the lead up to the race start, which is expected to be on Sunday 1 December.
Prince Harry's charity trek to the South Pole has been shortened by 60km (37 miles) because of adverse weather.
The race, which will now be 163 miles long, will begin on Sunday. The 29-year-old is taking part with wounded service personnel in aid of the military charity Walking with the Wounded.
Photos have been released of Prince Harry's trip across the Antarctic to the South Pole.
The 29-year-old prince is taking part in a charity trek with wounded servicemen and women.
Prince Harry has been preparing for a trek across the Antarctic to the South Pole, listening to safety talks ahead of the hike.
Prince Harry has revealed his father was "a little bit concerned" about his trip to Antarctica and that he tried to calm Prince Charles' nerves ahead of the polar trek.
Harry said: "I obviously tried to keep him calm by saying the North Pole was the dangerous one because we were walking on frozen ocean, whereas this time, yes, there's crevasses - but hopefully the guys will take us around that.
"Apart from frostbite and stuff like that you should be able to look after yourself."
Prince Harry quipped that his brother William will be envious that he has managed to escape from a "screaming" Prince George.
Speaking as he prepares for a 200-mile polar trek in Antarctica, Harry said, "I think he's just quite jealous I managed to get away from a screaming child."
Prince Harry joked that he would need to break more than his toe to avoid competing in the Walking with the Wounded polar trek.
The prince said: "I obviously tried to break my toe to get out of the trip - that was a massive fail on my part.
"Friends of mine said, 'You need to go that step further and break your leg', but I chose not to.
"My toe is probably 95% now so I'm fine, and even if I mention my toe I see Duncan turn around and laugh at me, mock me, so whatever setbacks I've had is irrelevant against these guys - it's always going to be"
Prince Harry has been snowed in at his base camp in Antarctica following a storm and very high winds.
The 29-year-old prince and his fellow Walking With The Wounded expedition members were forced to postpone skiing training and remain confined to their basic accommodation blocks at Novo.
They have been have been resting and unpacking and repacking the kit they will take on the 200-mile trek to pass the time, with their departure date to the second base camp at 87 degrees south likely to be moved from today to tomorrow at the earliest.
Prince Harry has been getting used to life in the sub-zero conditions of the Antarctic ahead of his charity trek with wounded servicemen and women.
The 29-year-old prince made some final adjustments to the kit he will be taking with him on the 200-mile expedition and took part in some skiing training to acclimatise.
The Walking With The Wounded South Pole Allied Challenge 2013, of which Harry is patron, will see the participants race across three degrees to the South Pole.