The Duchess of Cambridge surprised guests as she joined Mary Berry at the Back to Nature festival at RHS Wisley in Woking on Tuesday morning. Kate, 37, returned to work as she opened the new site, which has been inspired by the original design she created with Adam White and Andree Davies for the Chelsea Flower Show in May. The Back to Nature Garden includes features from the original garden at RHS Chelsea, including the hollow log and boulders from the waterfall, as well as the wildflower meadow, hidden burrow and rolling hill from RHS Hampton.
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Both Kate and Mary joined children on a ride in a trailer pulled by a tractor through the grounds to the site of a Back to Nature Garden Festival taking place at Wisley until September 15. New elements include a "bouncing forest", where visitors can jump on trampolines surrounded by trees, two treehouses, linked via a walkway with slides, and a living willow pod. The garden at RHS Wisley will be a permanent feature for children and families to enjoy. The project for Kate has been part of her work on early years and how spending time outdoors can benefit young children. The Duchess even brought along her own children to play in the Back To Nature Garden before its grand opening this summer. The Cambridges released rare footage of Prince George, six, Princess Charlotte, four, and one-year-old Prince Louis helping their mum to collect moss, leaves and twigs to decorate the garden. Click through the gallery to see the best pictures from the engagement...