I am visiting family in Kerry and have being remembering the taste of the water here from when I was small. Wow it is as good as ever. A perfect spot to establish a brewery. No chlorine no fluoride and the softest sweetest water you would ever want. :)
Any water would taste good compared to the stuff in your part of the world to be fair :P
I love the water on the dingle peninsula. It's the one place where i really notice a difference in appearance, taste and smell. lovely water.
Graiguenamanagh co. Kilkenny water one of the best tasting water in Ireland.
How about a lithium inspired beer?
http://westkerry.com/blog/?page_id=271
Shanna