Killary Harbour
Satellite image of Killary Harbour
Irelands only "fjord". It is disputed that it was actually formed by glaciers. It forms the border between parts of counties Galway and Mayo. It's 16 kilometers long and in the center it's over 45 meters deep.
On its Northern shore lies Mount Mweelrea, 817 meters high. Musselrafts can be seen in the water.
For a picture, see Wiki Italiano here.