A forlorn shopping trolley lies half submerged on a mud bank.
Tattered plastic bags flutter like prayer flags in the gentle breeze.
An ancient heron, infinitely patient, watches on one spindly leg.
The majestic Dodder River was once the life blood of the city, driving the engines of industry; now it slowly, languorously winds its way from Kippure to Dublin Bay.
The detritus of modern life clogs its arteries and lines its banks, yet it endures.
And for those fortunate enough to live close by; for dog walkers, Sunday strollers, fitness fanatics and anglers, the Dodder represents something more, something special.
This Saturday, a group called Dodder Action, are organising a walk along the Dodder, from Firhouse to Ringsend, as a prelude to a massive clean-up later in the month.
Two occasionally angry residents and two excited Beagles will be among them.