From Ballinasloe to Drumshanbo part 4: "Yesterday's Journey" Moving north on the River Shannon, we glimpse European otters enjoying a natural existence in one of their last refuges in Europe. At Richmond Harbor, we discover another kind of ruins - those of the old Royal Canal terminus. At one time, this port produced 70,000 gallons of whiskey a year, and was the point of departure for thousands of emigrants who fled famine for a desperate chance at a better life in the New World.