Raheen or Ballyheeney is nowadays (or was in 2015) a small, quiet place on a tributary of the Blackwater, close to the lower or Youghal end. Two rivers join the Blackwater at the same place: the Greagagh to the north and the Licky to the south. The Licky looks like the larger river but the Greagagh flows through Clashmore and had a couple of quays along it. It’s not far below Ballynaclash quay.
I’m not sure which of the quays is Raheen.
The illustration shows one of the Grand Canal Company’s motor barges; I’d be surprised to find that any of them reached Raheen!