There are actually 2 castle’s, an old and a new(or newer, its still very old obviously). The herd of white deer are worth the walk alone, they’re beautiful. Don’t expect throngs of tourists being herded on and off coaches here, it’s not on the tourist trail at all. That’s part of its appeal though I think. Recently purchased by Cork County Council that could all change relatively soon. Recommend you see it while you can still have the place all to yourself.