The strange affair of the Black Lough that wasn't is solved. It seems that what boaters call Black Lough isn't a lake at all but a small bay round the back of Illaunmore. The real Black Lough is just below Urra, a hill not far from Dromineer and certainly not accessible by boat. Not even a dinghy I don't think.
We cycled up to Urra round the edge of the bay from Dromineer and eventually found this little lake. Here it is:
I don't know if any of this blog is going to appear as I'm doing it from my phone. But here goes.