Budding builders will take to Timbertown this weekend in Maidenhead as the event celebrates its 30th year.
'The world's your oyster' has been chosen as this year's theme in honour of the project's pearl anniversary.
Timbertown begins on Saturday and closes on Tuesday at Town Moor in Blackamoor Lane.
The popular event sees children build and decorate structures before they are demolished and used on a giant bonfire.
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The Met Office has issued a yellow alert for Windsor and Maidenhead, Slough and Wokingham, warning that rain moving eastwards across the south of the country may turn to snow in some places.