Hard to beat West Cork fer the scenery, East Cork is my favourite, North Cork I don't know too well but it is a very friendly place, I used to do a school run out that way and everybody that you drive past would salute you which I found a tad strange at the start.
There is a little village with an Inn in South Cork called Nohoval which is a bit like the town that time forgot and fer Tony, Yes it is on the coast but don't ask me any fishing questions about it.