The road has been changed to a promenade. I suspect that side path doesn't exist.

While the river has been canalised, there is no meaningful quay on this side.

https://www.echolive.ie/corknews/arid-41607328.html

https://www.corkcity.ie/en/council-services/services/roads-and-traffic-management/sustainable-transport-schemes/projects-under-construction/marina-promenade/