The opening of the play area at the Neatherd Moor in Dereham has been put back until Friday.
It was originally hoped that it would be opened today but the town council said a shelter is taking longer to install than anticipated.
The new amenity, which cost £100,000 to install, will be officially opened by the mayor Phillip Duigan at 11am on Friday.
The centrepiece will be a climbing frame, featuring a slide, rope wall and bridge. Other new pieces include a cable rider, five-way swings, a children's maze, a small play house with a slide for younger children, a rope swing and a small shelter.
New tables and benches will enable families to picnic more comfortably
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