How would you know if you found the right place?

You don't have to look up the four Kerry townlands or the 16 in various other counties, because, probably, none of them are relevant.

If the song has any geographical credibility, which I believe it has, the relevant Dooneen has to be on the Kerry side of the Shannon estuary. 'Take a view o'er the Shannon, fine sights you'll see there'.

All suggestions are welcome but there has to be some evidence. At present, for me, Dooneen Point seems the most probable locale.

(Actually, this was a question that had intrigued me long before this Thread).