It was announced in January that the Duchess would become patron of the Treehouse, a charity she chose to support after personally researching her selection.

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The treehouse has undergone something of a renaissance in recent years, with canopy-level accommodation springing up all over Europe.

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There is a collection tin outside for people to donate money to the Treehouse Appeal to build a new hospice in east Ipswich.

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Start with savouries such as smoked pastrami salmon sticks or peanut butter maple bacon dates at the upstairs Treehouse Bar, then descend to dine on specialties such as potted duck and foie gras served in a jar, pork chops served with cumin bacon and mango chutney, or dry-aged steaks.

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