King also known as "Odd Doug" in national park (6)

I believe the answer is:

kakadu

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'national park' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'king also known as odd doug' is the wordplay.
'king' becomes 'K' (chess abbreviation).
'also known as' becomes 'a.k.a.' (synonyms).
'odd' means one should take alternating letters.
The alternating letters of 'doug' are 'du'.
'k'+'aka'+'du'='KAKADU'

'in' is the link.

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I've seen this clue in the Sydney Morning Herald.

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