If you are looking for au authentic Irish experience, if you want to get closer to the sensation of living on Craggy Island, I would recommend to spend some time of the beautiful Aran Islands.
In the bay of Galway, (west coast of Ireland) you will find these 3 island. Now it takes a weekend to visit the bigger one but I would recommend to check all 3 of them.
most of the soil of the main island is apparently man made with the algues collected over the years in order to feed the cattle. this must have been a humongus job because if you observe the photos, the rocks are apparently all the same.
Disconnection, simplicity and fresh air guaranteed