That’s the Munster Blackwater. For some time I have had a page about it here, based on a boat trip from Youghal to (and a little beyond) Cappoquin and on road trips to the Bride and the Lismore Canal.
I thought it would be useful to visit the Blackwater by road, driving around the lower portion from Cappoquin to the Youghal Bridge and back again to visit the various quays and to see what could be seen from the land rather than the water.
I have put up a page here; it has links to individual pages on the places we visited (with photos). You can move from place to place on that page or follow the links on the bottoms of the individual pages to follow a clockwise route around the lower Blackwater from Cappoquin to the Youghal Bridge on the east side and back up on the west side.
Irish waterways history 