We did the Connemara day trip. It was great! I want to visit that place again. Our driver was fantastic - he was nice and friendly. He was even able to deal with the fact that we got stuck behind a triathlon and we were going to be late for the fjord ferry. You get to see a lot in one day and if you're on a tight schedule, these day trips are the best way to see a lot of things and still enjoy your trip.