Decedra Willham is a level 45 npc located on the Theramore Isle docks. She can provide directions for The Lady Mehley, which travels to Menethil Harbor. It's unknown if she survived the Attack on Theramore Isle.
I do so enjoy sitting out here, listening to the sounds of the Great Sea. Oh, what? Yes, there is a ship that will take you to Menethil Harbor. It docks here from time to time.