It's been almost 15 years since we were in County Kerry, but this place still sticks out in travel memories as being awesome.
https://www.ballyseedecastle.com/ I recently looked it up for my brother's wife (going there soon), and it still looks like a great place.
They had two awesome dogs - an Irish Wolfhound, and this little one who carried around a handful of rocks in his mouth for people to throw. Then he would round them all up without ever letting an already picked up rock fall out of his mouth. He wouldn't drop any of them until they were all successfully found/stored in his cheek.