This was one of a small collection of Ogham Stones in the Dingle Peninsula. Lord Ventry lifted a number of them and installed them in the gardens of his residence just outside the town of Dingle. This residence is now the school Coláiste Íde. The picture here shows the solitary remaining stone in its original site by the sea.
Further information on standing stones and the ancient script Ogham can be found here: http://www.irishmegaliths.org.uk/pillarstones2.htm