Like everybody has said The Old Head is a great golf experience, definitely worth it. There has been some great deals there this year, the best one being a €60 green fee for groups of 16 or more.
The accomodation is great as well, a deal there would add to the value.
The cliff side holes are the highlight, the inside holes are a bit non descript.
As for Cork GC, well worth the visit, always looked after well there
, and potentially a very interesting revamp coming up.