sorry to be flippant Keiron, but how about the grounds of PM's mansion - lots of bush, heaps of spare showers/toilets, large swimming pool, spa and the sea is nearby.
Just so long as you promise to vote for him you can stay for a week LOL
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Cheers Bruce
The amazing things you see when nomading Australia
I could also stay at Kirribilli House, because he is not using it.......however the neighbours are not very friendly and the site looks un-level........cheers
As you require showers then caravan parks will be the go. I would suggest Ferndale Park near Chichester Dam via Dungog could be a good spot. The place is a working farm with the Williams River running through it. Plenty of space. Facilities are basic but clean.
Sydney is a city.
The best i could suggest Lane Cove park., part of the national parks at Ryde, but right under flight path from the airport, and you will have to pay.
I personally love it.
Definitely Lane Cove, just been there in last few days, only thing phone before you go as they have been very busy, great value, still only $36 something a night, less with Seniors card, only downside maximum stay usually 28 days. Handy to everything and a bargain for a city price.