The Blackwater enters the head of Kenmare Bay — a Kerry spate river, and not to be confused with the Munster Blackwater away to the east. It is open for 2026. Spring fish come first, then grilse and sea trout running on a flood; without a rise of water there is little doing. Permits through the Blackwater Tavern and locally around Kenmare. Carry the Salmon and Sea Trout State Licence.
- Old red sandstone