Catherine, Princess of Wales, completed the National Three Peaks Challenge last weekend to raise funds for The Royal Marsden Cancer Charity.
The future queen scaled Ben Nevis, Scafell Pike, and Snowdon within 24 hours, starting on Saturday evening.
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Supported by Mountain Rescue, she carried out the expedition solo, which Kensington Palace believes is a royal first.
New images showed the princess reuniting with her husband, children, parents, and brother at the base of Snowdon in north Wales.
"This time last week, completing the National Three Peaks Challenge," read the caption on the family's social media post.
The princess shared her motivations for the physical feat following her health recovery.
"Chance to explore life beyond diagnosis and to give something back," she said.
She expressed gratitude to the public after finishing the climb.
"A huge thank you to everybody who has supported The Royal Marsden Cancer Charity," read the post.
The princess highlighted the personal significance of the medical facility that managed her care.
"A place that holds great meaning for me and whose care and expertise are life changing for so many people," she said.
She emphasized the necessity of comprehensive support systems for patients navigating serious medical conditions.
"Raise awareness for the deeper impact of serious illness and the importance of holistic healthcare," she said.
She elaborated on how individualized treatment plans assist patients during recovery.
"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," she said.
