A couple of choice quotes:

"Unfortunately I feel that it is not prudent of my time to reply to all your points raised."

"I am afraid the list of possible offences and occasions is too long to note as with up to a million visitors per year all sorts of incidents occur that have to be taken on a case by case basis."

"As I am sure you are aware from the media anti social behaviour comes in many guises nowadays."

"I feel that the need for access to land for people does not extend to vehicles/boats being invited on which would devalue natutral areas greatly."

So, they have unwritten rules that they can't be bothered to explain and which they enforce arbitrarily, they infer that I am guily of anti-social behavour, and don't believe I have any right to be there if I arrive from the sea. Nice. I have responded, and cc'd the Director General of the NT.