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Kate Middleton, the Princess of Wales and a cancer survivor, announced on Instagram that she had taken on the National Three Peaks Challenge, in which participants attempt to climb the highest mountains of England, Scotland and Wales within 24 hours, as a “chance to explore life beyond diagnosis and to give something back”.

The princess announced in March 2024 that she had been diagnosed with cancer and by January 2025, she said she was in remission. While announcing her recovery, she thanked The Royal Marsden for looking after her so well during the past year. She and her husband Prince William became patrons of the Royal Marsden Hospital at the time.

“In my new role as joint patron of The Royal Marsden, my hope is that by supporting groundbreaking research and clinical excellence, as well as promoting patient and family wellbeing, we might save many more lives, and transform the experience of all those impacted by cancer,” the princess had said at the time.

In her post on Monday, she said, “Every year, hundreds of thousands of people in this country hear the words no one wants to hear. What follows is a path that tests every part of who we are: physically, emotionally, psychologically and spiritually. The challenges ripple outwards, touching families, friendships, work and the quiet moments we spend alone with our thoughts.

“Cancer doesn’t just affect the body. It changes how you think and feel and profoundly affects every aspect of life. I know this personally, and that the journey through and beyond treatment requires more than medicine alone.”

She said she had 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. “The Royal Marsden is a place that holds great meaning for me and whose care and expertise are life changing for so many people. Through this challenge, I want to raise awareness for the deeper impact of serious illness and the importance of holistic healthcare,” the princess explained.

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

“We have an opportunity to reshape what the future of holistic cancer care looks like, enabling more people, nationwide, to access the kind of personalised support that can help make a meaningful difference during and after medical treatment,” she said.

Her challenge will support the Royal Marsden Cancer Charity, helping to transform access to, and understanding of, holistic care that will enhance recovery and healing for patients across the UK.

“Healing, whether personal or collective, is not just about fixing what is wrong. It is about finding balance in how we live. Between effort and acceptance, between control and trust, between thinking and simply being. Because in the end, bravery isn’t just about pushing forward. It is about knowing how to stay grounded, connected and present, no matter the terrain or landscape you are walking.”