That is Dunquin Pier on the Dingle Peninsula.

Its where you used to get the Blasket Island ferries but they are not running from there this year. (running instead from Ventry)

Its a small branch off the Slea Head drive, there is a small brown sign pointing down the left turn off the main route think there is a bit of a cemetery just before it , if you don't know its there you won't notice it. Says "Dun Chaoin Pier" go down there and first right down a single track road till you see a couple of car parks and the pier is on the left down the hill.