Princess Kate, 44, completed the National Three Peaks Challenge over the weekend of June 27-28, 2026, climbing Scafell Pike in England, Ben Nevis in Scotland, and Snowdon in Wales within 24 hours [1, 2, 3]. The challenge involved approximately 23 miles (37 km) of walking with a total ascent of over 3,000 meters (around 10,052 feet), plus about 462 miles (743 km) of driving between the peaks [2, 4, 5, 6].

She undertook the trek solo but was supported by a Mountain Rescue team throughout [2, 4]. At the end of the challenge, she was greeted by her husband Prince William, their three children — Prince George, Princess Charlotte, and Prince Louis — along with her parents, Carole and Michael Middleton, and her brother James [2, 3, 7].

Princess Kate took on the endurance test to raise funds and awareness for the Royal Marsden Cancer Charity, affiliated with the hospital where she was treated for cancer [1, 2, 3]. She was diagnosed with an undisclosed cancer type in March 2024 and underwent major abdominal surgery followed by chemotherapy [1, 2, 8]. Kate announced she was in remission in January 2025 and has gradually resumed royal duties since [2, 3].

Reflecting on the challenge, Kate said, "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" [1]. She highlighted the impact of cancer beyond the body, noting, "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" [2]. Kate also emphasized holistic care involving physical, emotional, psychological, spiritual, and social support as key to healing [1, 4, 9].

During the trek, she met 11-year-old cancer survivor Ted Haslam and made a quiet donation to a children’s charity in his name [10]. "Many people ask me why I took on this challenge. Partly for myself—I am grateful to be here and strong enough to complete it. But more importantly, it is to give back and honour those working tirelessly across the country," she said [10].

Kate shared a message on social media on June 28 reflecting on her cancer journey and the wider impact of serious illness [1, 9]. Earlier in May 2026, she made her first overseas trip since her diagnosis, visiting northern Italy [4].