One caravan park I can recommend is Possum Park, (http://www.possumpark.com.au/) located 20km north of Miles, it's quite unique, reasonably priced, and well sign posted too. They do a rate for single travellers and have a campfire Happy Hour in the Grey Nomad season.
(At the risk of being accused of double posting I have copied this from part of a response in the campsites forum)
-- Edited by jimricho on Wednesday 13th of April 2011 06:40:22 AM