The Far Darrigs in Lough Gur— specifically on that SE trail of them —also count towards Step 6 of the quest "Piaras and Lhia" (Level 49) given by Piaras outside Howth's front gate. This quest says to go to Bog of Cullen for the kill, but you don't need to go that far or face any of the other hazardous mobs out there.
Edited, Jul 31st 2020 11:27pm by Kirsteg