Catherine completes Three Peaks Challenge to ‘explore life beyond’ cancer diagnosis BBCKate Middleton Secretly Climbed Britain’s 3 Highest Peaks in Under 24 Hours to Spotlight Life After Cancer People.comPrincess of Wales completes Three Peaks Challenge The TelegraphPrincess Kate scales Britain’s highest mountains to raise money for cancer charity South China Morning PostPrincess Kate undertakes gruelling 23-mile challenge for ‘life-changing’ cause HELLO! Magazine