Catherine, Princess of Wales' children joyously larked about in nature in the video she used to announce she is "cancer-free"

Along with showing her and her husband Prince William, 42, cuddling up - with the princess laying her head on his shoulder - the clip also showed the couple's children Prince George, 11, Princess Charlotte, nine, and Prince Louis, six, enjoying a picnic with their parents and playing in Norfolk.

The family are also seen laughing while playing card games and messing around with a camera.

Prince George is seen in the clip grinning as he carried a cricket bat while hiking through the woods with his mum, dad and siblings.

The Waleses' three kids are also seen dressing in summer clothes on nature walks, while a snap showed Prince Louis laughing as he was pushed on a swing by Catherine.

Another moment shows George staring down the lens of the camera as he asks "Is this filming?" while sitting on a picnic blanket with his mum.

Louis then chips in by saying "Hello!" while Charlotte also giggles.

The family are also seen clambering over wooden logs and sharing cuddles - with Catherine's parents Michael and Carole Middleton joining the fun.

Catherine, William and their kids are seen in another moment racing through the sea, with George and Charlotte - who were guests at Taylor Swift's 'Eras Tour' show at Wembley Stadium earlier this year - seen wearing friendship bracelets.

Catherine said in a statement that went with the video: "As the summer comes to an end, I cannot tell you what a relief it is to have finally completed my chemotherapy treatment.

"The last nine months have been incredibly tough for us as a family. Life as you know it can change in an instant and we have had to find a way to navigate the stormy waters and road unknown.

"The cancer journey is complex, scary and unpredictable for everyone, especially those closest to you.

"With humility, it also brings you face to face with your own vulnerabilities in a way you have never considered before, and with that, a new perspective on everything."

It still remains unclear what type of cancer Catherine was fighting.