Freshwater Croc In Dublin Canal Aaron McAllorum at 3:14 pm August 19, 2014 Feared and despised. The Royal Canal at the 12th lock in Blanchardstown/Castleknock. John Lawlor writes: “Stalking its prey by the looks of things.” Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest