Princess of Wales finishes 24-hour challenge scaling U.K.’s 3 highest peaks

Catherine, the Princess of Wales, has successfully completed the demanding Three Peaks Challenge, scaling the UK's three highest mountains within a 24-hour period. The 44-year-old royal undertook the arduous feat over the weekend to raise funds and awareness for the Royal Marsden Cancer Charity, a cause deeply personal to her.

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I have taken on the National Three Peaks Challenge, not simply as a physical endeavour but as a chance to explore life beyond diagnosis and to give something back.

This achievement marks a significant personal milestone for the Princess, who was diagnosed with an undisclosed cancer in early 2024. She underwent treatment and announced her remission in January 2025, subsequently returning to her royal duties. The Royal Marsden Hospital in Chelsea, west London, was where she received specialized oncology care.

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The Royal Marsden is a place that holds great meaning for me and whose care and expertise are life-changing for so many people.

In a social media post, Catherine explained her motivation, stating she wanted to "raise awareness for the deeper impact of serious illness and the importance of holistic healthcare." She emphasized that the Royal Marsden holds great meaning for her, providing life-changing care. The Princess highlighted the need for a "whole person approach" to care, supporting patients through the challenges of diagnosis and treatment.

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Every individual is different, and ensuring there is a whole person approach to care enables those living through cancer to manage the deeply personal challenge of diagnosis.

The Three Peaks Challenge typically involves climbing Ben Nevis in Scotland, Scafell Pike in England, and Mount Snowdon in Wales. Catherine completed these climbs solo, though she was supported by mountain rescue teams. She was met at the summit by her husband, Prince William, their three children, her parents, and her brother.

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Holistic therapies complement clinical pathways and support patients’ ability to maintain their wellbeing, resilience and quality of life during an exceptionally difficult time.