G,day Gary.
You could try Budgewoi caravan park about 10min drive away.
For the real adventurest / desperet the Wattagan Mountains are about 25min and camping is free.
I only live about 10min away from the club but during the race i will be staying at Belmont Pines caravan park which is located at the north end of lake Maquarie [about 30min drive] because we book a spot on the water front every year at xmas. there are plenty of caravan parks around Lake Macquarie with the furthest being about 30min drive. Hope this helps.

P.S. they hire house boats up at Toronto which you could drive down and anker right at the club.
Seeya.