Kate Middleton – Princess Kate completed the National Three Peaks Challenge in 24 hours to raise money for the Royal Marsden Cancer Charity, using a personal message about remission and the “whole person” side of cancer care as she marked King Charles’ birthday at Trooping the
By the time the hills were behind her, Princess Kate looked like someone who’d chosen comfort on purpose—black hooded windbreaker, baseball cap, and casual steadiness—while she did something far from routine.
The Princess of Wales. 44. shared that she scaled the three highest peaks in Great Britain in 24 hours to raise money for the Royal Marsden Cancer Charity. In an Instagram post dated Sunday. June 28. she leaned against a rock in one of the photos. her sapphire and diamond wedding and engagement ring visible—an understated nod to the personal story threaded through the day.
Kate framed the challenge as more than training. “Not simply as a physical endeavour but as a chance to explore life beyond diagnosis and to give something back,” she wrote in her post.
In a follow-up video on Instagram. she returned to the reason she kept hearing from others: why do it at all. “Lots of people have asked me why I’m doing this challenge, and partly it’s personal. I’m so grateful to be here, to be strong enough to walk these hills,” she said. “But. more importantly. it’s to give something back and acknowledge really all the incredible work going on up and down this country.”.
The charity’s reach, she pointed out, is tied directly to her own cancer journey. It supports work at the hospital where she underwent cancer treatment.
In the same messaging, Kate—who is in remission—described how cancer doesn’t stop at the body. She wrote that the illness comes with emotional and psychological challenges that require more than medical treatment alone. Completing the challenge, she said, was also meant to highlight the importance of holistic, “whole person” approaches to cancer care.
Her reflections broadened into a message about healing itself. “Healing, whether personal or collective, is not just about fixing what is wrong. It is about finding balance in how we live,” she wrote.
After she finished the challenge, Kate was greeted by Prince William and their children, along with her parents and her brother, James Middleton.
The climb also came with brief, human moments from fellow hikers. People who encountered the princess while climbing shared how the group didn’t recognize her. In a Facebook post, Jacky Leung wrote that her friends didn’t notice Kate passing by at all. Leung shared video describing the princess climbing up stone stairs wearing a blue T-shirt, green cargo pants, and a backpack. Leung called the 24-hour National Three Peaks Challenge “a serious test of grit. ” adding that Her Royal Highness showed “immense strength and spirit.”.
This story sits against a broader medical timeline that Kate has already disclosed publicly. After her 2024 cancer diagnosis, she underwent a course of preventative chemotherapy following abdominal surgery. Her treatment ended months later, and in January 2025, she revealed her cancer is in remission. Since then. she has continued to highlight the work done at the Royal Marsden Hospital in London and to visit with patients at the center.
The sequencing of these details is what makes the message land: the outward casualness of the gear, the inward weight of the remission story, and the clear link to the Royal Marsden Charity and its “whole person” approach to care—brought together in a single 24-hour climb.
Kate Middleton Three Peaks Challenge Royal Marsden Cancer Charity cancer remission Trooping the Colour Prince William holistic cancer care