Catherine completed the National Three Peaks Challenge over 24 hours, climbing Scafell Pike in England, Ben Nevis in Scotland and Snowdon in Wales. She did it in aid of the Royal Marsden Cancer Charity, tying the endurance effort directly to cancer fundraising and care.
She described the walk as a “chance to explore life beyond diagnosis and to give something back.” That line is the point of the story: this was not a symbolic appearance, but a public test linked to treatment, recovery and the charity page now carrying the fundraising push.
Ben Nevis and Snowdon
The Three Peaks Challenge asks climbers to take on the highest peaks in England, Scotland and Wales within 24 hours. Catherine completed all three, then shared a picture of herself at the summit of Ben Nevis and closed the route in Wales, where family members including the Prince of Wales, George, Charlotte, Louis, Carole, Michael Middleton and James met her.
The Royal Marsden Cancer Charity launched a fundraising page for the walk. The practical effect is straightforward: donations collected through that page are meant to support more people with cancer to benefit from holistic care, not just clinical treatment. In charity terms, that means care aimed at wellbeing, resilience and quality of life during a difficult period, alongside medical pathways.
March 2024 to 2025
In March 2024, Catherine said she was having cancer treatment and described the diagnosis as a “huge shock” after an “incredibly tough couple of months.” At the time, Kensington Palace said it was confident she would make a full recovery. By the start of 2025, she said she was in remission, and she later described that as “relief.”
She also used social media to sharpen the argument for broader care, saying: “Cancer doesn't just affect the body.” She added, “It changes how you think and feel and profoundly affects every aspect of life,” and, “I know this personally, and that the journey through and beyond treatment requires more than medicine alone.”
Dame Cally Palmer
Dame Cally Palmer said the Royal Marsden NHS Foundation Trust was “honoured” to have the Prince and Princess of Wales as joint patrons. That is the institutional backdrop to the fundraising page: a royal patronage, a charity vehicle and a public event all lined up around the same care model.
Catherine’s challenge now reads as a practical fundraising act rather than a one-off publicity beat. The unanswered piece is the scale of the money the page will bring in, but the charity has already turned the walk into a direct route for support.
