Thanks for all the replies. They've been very helpful. This is a great site, MadridMan.
Eddie, If you have time in Clare definitely travel (drive) around the Burren (a landscape of almost totally bare Limestone rock). There are some fabulous views. For a description see
Frommers The Aillwee Caves are also worth a visit if you are in this area.
I see from the web page that you are going to be in Rossaveal. If the weather is good (May is usually fine) I suggest heading out to one of the Aran Islands for a day. Several boats head in both both directions daily. There are Numerous Iron Age Stone Forts and castles etc on each of the Islands. For futher information see
Aran Islands If you look around these web pages there is loads more to do. The West of Ireland is one of the nice areas. Fabulous Scenery. Loads of great Golf Courses etc.