If I had a good throwing arm, I could hit this townland from my back garden. please log in to view this image
I believe this town also has a diving club who sell more t-shirts than diving expeditions http://www.muffdivingclub.ie/
"So if you're looking for a trip to Ireland and you fancy some diving, then Muff is the place for you,"
There's also a place in Donegal (so I'm assuming it's not a million miles away from Muff) called Dunfanaghy (pronounced Dun-fanny).