Prince Louis takes first public steps in new family photos shared by Kate Middleton and Prince William

Prince Louis is officially walking!

In celebration of Kate Middleton designing the RHS 'Back to Nature' Garden at the Chelsea Flower Show this year, Kensington Palace have released the most adorable new images of Duke and Duchess of Cambridge and their children Prince George, 5, Princess Charlotte, 4, and one-year-old Prince Louis privately visiting the display.

In the heart-warming snaps - which were shot by Matt Porteous - the doting parents can be seen playing with their three children, while one image shows their youngest son taking his first public steps!

According to Kensington Palace, over the past months, Prince George, Princess Charlotte and Prince Louis have "helped The Duchess gather moss, leaves and twigs to help decorate" the garden.

They added: "Hazel sticks collected by the family were also used to make the garden’s den."

The Duchess told the BBC in her first solo television interview: "I really feel that nature and being interactive outdoors has huge benefits on our physical and mental wellbeing, particularly for young children.

"I really hope that this woodland that we have created really inspires families, kids and communities to get outside, enjoy nature and the outdoors, and spend quality time together."

The 'Back to Nature' Garden was designed in cooperation with award-winning landscape architects Andrée Davies and Adam White.

The world-famous show will be officially opened on Tuesday. 

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👀 We invite you to take a sneak peek at The Duchess of Cambridge’s #RHSChelsea ‘Back to Nature’ Garden! The woodland wilderness garden aims to get people back to nature, and highlight the benefits of the natural world on our mental and physical wellbeing. Speaking ahead of @The_RHS garden unveiling, The Duchess of Cambridge said: “In recent years I have focussed much of my work on the early years, and how instrumental they are for outcomes later in life. I believe that spending time outdoors when we are young can play a role in laying the foundations for children to become happy, healthy adults.” Some features of the #ChelseaFlowerShow garden include: 1. A swing seat hanging below the garden’s centrepiece, a high platform tree house, encouraging creative play and discovery for all generations. 2. The high platform tree house is inspired by a bird or animal nest and provides a wonderful place to retreat and look out through the trees. The treehouse is made from chestnut, with hazel, stag horn oak and larch nest cladding. 3/4. The garden is aiming to inspire interaction with the natural environment through its multi-sensory, green and blue plant scheme. The garden will be filled with incredible edibles, plants for craft activities, forest scents and a diverse range of plants, shrubs and trees of different heights and textures. The garden forms part of Her Royal Highness’s ongoing work on early childhood development and her mission to support efforts that give every child the best possible start in life. The Duchess has committed to making early childhood development the focus of her work in the years to come, and believes that providing children with the opportunity to spend time outdoors can play an important role.

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