The problem with the Dingle is that it's all small roads and cliffs - there are a couple of nice beaches though. There's rakes of stuff there, but getting about is a pain. If I remember rightly there are some nice walks around Mount Brandon and Gallarus.

I'll take a look at the map and come back with some other bits. You should seriously consider popping around to the Beara peninsular, though. Ardgroom & Uragh are must sees and there's good dog walking up there, especially around Cashelkeelty.