In reply to AlanP:
If you're over on the West coast, I'd second Ailladie as a venue - a lot of quality routes at VS/HVS grade, good gear in most of them... And not far from a decent pint of the Black stuff in Doolin...
Dublin-side, Glendalough is also an option - about 20-30 minutes pleasant walk along the valley bottom (followed by 10 minutes struggle up the valley side). There's lower grade stuff on a slab to the side. If you want a real day out then some of the multipitch routes will leave you grinning for days. Also quite a bit for the beanie-hat brigade on the boulders in the valley bottom.