The ruined port at Kirin'Var Village.
The Devouring Seawas Draenor's equivalent to the Great Sea of Azeroth. The largest orcish port on it was Zeth'kur. The sea was destroyed by the cataclysm, but curiously the shape of the coastline remains, the water replaced by the Twisting Nether. The only evidence of its existence is the ruined dock at Kirin'Var Village.