Kate Middleton Completes Three Peaks Challenge Amid Cancer Recovery

Kate Middleton is elevating a good cause. 

The Princess of Wales participated in the UK’s National Three Peaks Challenge, trekking across the highest peaks of England, Scotland and Wales. She hiked in support of the Royal Marsden Cancer Charity, which funds cancer treatment and research.

“Lots of people have asked me why I’m doing this challenge and partly it’s personal,” Kate said in an Instagram video posted June 28. “I’m so grateful to be here, to be strong enough to walk these hills. But more importantly it’s to give something back.”

Praising the “incredible work” being done in the United Kingdom to advance cancer care, the 44-year-old expressed gratitude for Royal Marsden, which is where she herself received cancer treatment after being diagnosed with the disease March 2024. The princess has been in remission since January 2025. 

In taking on the National Three Peaks Challenge, Kate—who shares kids Prince George, 12, Princess Charlotte, 11, and Prince Louis, 8, with Prince William—explained that it is her way of raising further awareness about the realities of cancer.