The castle will have its first appearance at the Common People Festival in Southampton this weekend (28-29 May) on Southampton Common, before moving to Camp Bestival (28–31 July) and Bestival (8-10 September).
It measures 23.8 metres long and 20.7 metres wide and stands 12.8 metres tall at its highest point. It is filled with 1143 cubic metres of air and can comfortably accommodate 100 people at one time.
The side turrets are equal in height to the walls of Cardiff Castle, making it taller than the Great Wall of China and roughly three times the size of the Berlin Wall.
Rob da Bank, co-founder of Bestival, said: "We do love breaking a record and this is one of our funnest builds so far."
He said that he had a "pipe dream" about five years ago of building the world’s biggest bouncy castle.
The bouncy castle is a joint project between Bestival and Something Creatives.
Earlier this year King unveiled a giant Candy Crush bouncy castle on the South Bank.
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