Correction for the size of Sydney Kingsford Smith Airport (SYD)
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How big is 876 hectares?
It's about as big as Sydney Kingsford Smith Airport (SYD)

The size of Sydney Kingsford Smith Airport (SYD) is about 900 hectares.
(a.k.a. Mascot Airport, a.k.a. Kingsford Smith Airport, a.k.a. Sydney Airport) (Sydney, New South Wales, Australia) (total site area)
Sydney Kingston Smith Airport covers a total area of about 900 hectares, including three main terminals. The airport offers 8,930 m of total runway length.