Its many years since I was down that way, but when I was around Port Lincoln one of the things I enjoyed was catching Squid / Calamari. There used to be heaps of them and it was very easy to catch a good feed from any small jetty or warf. I dont know if this is still the case but its worth a try. Easy to catch, clean and cook and O so tasty, far better fresh than anything you can buy.
SBB

Geoff Lorraine

if you email tourist info center they will send you
info about places to visit / depending on what you
want to do/ base your self somewhere & do day trips
or stay at diff places for few days
excelent fishing from port neil to ceduna & views
also some good inland parks
some of the little out of the way places very interesting
some of the touristy places very dear $
it all depends on your intrests
hope this helps a little  

Daryl