But... strangely enough I was just thinking about this about a week ago.
I was in Zante quite some years ago and hired a peddalo (sp?) and I wondered about trolling lures around some of the rocky outcrops that were accessible only from the sea.
I'm afraid that I can't be of any help other than to say in retrospect I saw some fishy looking areas. I didn't fish back then though.
rosco....i went to tsilivi a couple of years ago in zante,to theleft of the main beach there was a small concrete jetty.there were a few people fishing brits infact they were catching small stuff on squid strip looked very fishy... on a day trip into zante itself i saw some nice mullet around moored up boats but didnt see anyone fishing...hope this helps...