Hello Bob B & Spouse,
May your travel dreams of Ireland be all you hope for and then some..I loved this trip and offer just a few of my favorites from my independent free-time explorations:
In Killarney if you would enjoy a view of a romantic Castle setting...take a jaunting car (read horse-drawn cart) ride to Ross Castle thru the National Park. Guided tours of the castle are available, however, just the view of it with the lake and swans is pretty special. The jaunting car rides are about $10.00 per person so if you are interested, maybe some of your fellow travelers would like to share the cart with you and split the cost.
Another suggestion for independent activities in Killarney is to take a tour of Muckross House and Gardens in the national park. The PD or hotel should be able to help with tour times and cost questions.
In Galway...an authentic tea can be had in a small, charming shop across the street from the Spanish Arch called Cupan Tae. Which of the large assortment of home-made cakes to go with your pot of tea is a delicious decision. I lingered after the guided walk with our PD and had my tea before returning to the hotel.
Don't miss the optional trip to Connamara for a taste of beautiful, wild rural Ireland with thatched cottages and a feeling for how life must have been in Ireland's past.
For some lunches on your own...the pubs have hearty soups and bread that are cheap, good, and filling.
While in Dublin a visit to the National Museum...for the archaeology, decorative arts, and history of Ireland thru its artifacts...Celtic, Viking, etc.. is worth your time.
What ever you choose...enjoy the Emerald Isle!