It is not confined to Cork. Last year my family and I stayed in my aunt’s condo in a gated, affluent South Dublin community. We walked to the nearest bus stop and to my shock the entire hedge behind the bus stop was covered in garbage. There were piles of rubbish people just threw there while waiting for the bus, I was embarrassed.
We stayed a week in Clare and it was absolutely beautiful but cities in Ireland are covered in dog shite and garbage.
