Prince Harry grinned as he learned he will experience temperatures as low as minus 40C when he joins a group of wounded servicemen for the first five days of a trip to the North Pole.
The 26-year-old royal attended a briefing after he was greeted by the team from Walking With The Wounded, and heard about his training for the next three days.
He is expected to play a full part in the final preparations for the expedition, including sleeping out on the ice and dragging a 100kg sled. The sled will be packed with everything the prince needs such as food, clothing and a share of cooking equipment.
On Friday the prince will fly out to the start point of the 200-mile trek.
Asked if he was ready for the challenge, Harry said: “Not as ready as these guys are, but I'm just here to give them as much support as possible.
“I haven't had as much time to train.”
He added, jokingly: “But today, to their huge amusement, they're going to see me on a pair of, whatever they're called, skis, this afternoon.
“So it should be entertaining for all of us.”
Harry is patron of the Walking With The Wounded charity which aims to raise £2m from the unaided trek to help other injured servicemen and women find work, peace of mind and security.