Two Caravan parks close by, one right next to the course.
Parks do charge going rates so may not be suitable if you are looking for free camping and local council is not receptive to unauthorised camping.
I have a few for you if your on the Eyre Peninsular, Smokey Bay but no free camping, caravan park is near, then there is Louth Bay, the camp is a $10 per night. and then there's the big one if you travel the Nullabour, it really starts in Kal going east but you can go east to west.