The _Middle Ward_ contains little of interest. On the north side it is 15 feet broad, and hence, between its two roundels, 10 feet apart, opened the postern, 8 feet wide, now walled up. On the west front, the ward is 27 feet broad and forms a noble terrace overlooking the sea and commanding the approach from the water-gate. The hall had windows looking this way, and upon it opened the hall postern. Towards the south end a few steps descended about 10 feet into the south-west bastion. Probably there was a cross wall here with a doorway. Turning the south-west corner, the ground again rises to a door in a wall which crosses the south terrace near its west end. This side of the wall has a central half-round bastion, the broken parapet of which shows traces of a loop and of a garderobe. On the remaining or eastern side is the great entrance. Here the gateway, which crowns a low salient, is flanked by two roundels. The portal is broken down, and it does not now appear how this was connected with the inner gatehouse. Probably the short distance between the two was arched over and had lateral doorways into the middle ward. From the inner gate, twenty steps descended to the bridge, so that no horse or carriage could have entered this way. The defences beyond the middle ward are the ditch, the outer ward, and the water-gates and passage. The ditch covers only the east and south, the two landward sides. It is quarried in the rock, and is about 60 feet broad and was 20 feet deep, with vertical sides. Its scarp is the revetment wall of the middle ward, and the counterscarp, where the rock was broken, is also lined with masonry. The ditch runs out at either end upon the shelving face of the rock. Across it, to the main entrance, led a bridge upon which it is said there were two openings with drawbridges. The whole is now a solid causeway.