After coming out of his first visit to the cold chamber Prince Harry was asked how he had found the conditions, "cold" he said. Joking with the waiting press pack, he added: "it's your turn next."
Over a 20-hour stay the prince joined the Walking With The Wounded team as they prepare for their South Pole trek.
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Demonstrators jumped the barrier and lay down on the red carpet to draw attention to cuts to domestic abuse services.