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".
The Walking with the Wounded charity expedition to Mount Everest began with a six-mile trek in the Himalayas.
Prince Harry will today attend the launch of an expedition which is set to see him and three teams of wounded soldiers race to the South Pole later this year.
Harry, who is patron of the Walking With The Wounded's Antarctica project, will meet representatives from the armed forces charity in London.
The prince took part in the charity's trek to the North Pole in 2011 and announced while serving in Afghanistan earlier this year that he hoped to join injured soldiers from the United Kingdom, United States and the Commonwealth for the latest expedition.
Prince Harry missed a bid to conquer Mount Everest with the group last year and withdrew early from a successful North Pole expedition to attend his brother William's wedding.
But the 28-year-old vowed that as long as he is fit enough, he will head south for the race, which starts in November.