There are also two moats: an inner and outer moat.
The city stream passed near to the waterworks and then curved back to become what had once been the inner moat of the old town.
The 'Angampitiya', the military parade and training ground just inside the inner moat.
Parts of the central moat and all of the inner moat survive.
Traces of the enclosed mound and inner and outer moats are all that now survive.
The mound is surrounded by a hollow which may have been the old, inner moat.
In the west, the outer wall was immediately adjacent to the inner moat and comprised five small bastions.
Some residences were also located within the inner moats in the outer Nishinomaru.
The inner moat encircled the castle itself which, together with its drawbridges, made it a water castle.
The inner moat had been filled in here, and the vehicles went through a narrow gate in the wall to a courtyard.