A harbour formed part of a body of water.
Fluxmouth was connected to the Circle Sea via Fluxmouth harbour. (PROSE: The Sorcerer's Apprentice)
On 7 June 1941, the German fleet was preparing to depart harbours all along the Dutch and Belgian coast when Koenig and Wyckham's plot to use Chronosteel to enable the German invasion of Britain was thwarted by Clyde Langer and George Woods in Little Malding. (TV: Lost in Time)