New Delhi, June 29 -- Britain's future queen, Princess Catherine, has completed the National Three Peaks Challenge, one of the UK's most demanding endurance events, months after announcing she was in remission from cancer.

The Princess of Wales climbed the highest mountains in Scotland, England and Wales over the weekend to raise funds for a cancer charity and draw attention to what she described as "life beyond diagnosis."

The challenge also marked another significant milestone in her gradual return to public life after undergoing cancer treatment.

The National Three Peaks Challenge involves climbing the highest mountains in Scotland, England and Wales within 24 hours.

Princess Catherine completed the demanding feat by scaling Ben Ne...