Usually County Kerry, in particular Dingle, will come up as the most favoured destination when you poll any sizeable number of previous or aspiring visitors to Ireland, but for me Connemara is the place to go.
There's something about making it west of Lough Corrib, the numerous small lakes and rivers, the large expanse of bogs and the scenic valleys that run between the mountains. To top it all off are the white, sandy beaches and clean waters of the Atlantic Coast.
And since it is such a special place, it makes for a great photography location, staying in Clifden or Galway makes sense although I hae camped out in its wilds on occasion.
On my most recent expedition, I got this lovely reflection on the lake with the mountains catching the last rays of sunsetting-sun, and briefly got chatting with an Irishman who had lived most of his life in the USA but was back for the 'walking trip of a lifetime'.
As usual with the best locations throughout the Emerald Isle, there was no-one else around except for the walker. And some sheep, and the fish in this lake. Oh yes, me too.