 The surrounding beaches were defended with lines of barbed wire, slit trenches and square weapons pits, reinforced by concrete pillboxes to the north and south of the castle, at least partially laid down by the 1st Battalion Essex Regiment.A 20-foot (6 m) wide ditch was dug at the north end of the moat to prevent tanks from breaking through and following the track south past the castle, and a 545-foot by 151-foot (166 m by 46 m) wide anti-personnel minefield was laid to the south-west to prevent infantry soldiers from circumventing the castle's defences and advancing down into Craster.After the end of the war, the barbed wire was cleared away from the beaches by local Italian prisoners of war, although the two pillboxes, the remnants of the anti-tank ditch and some of the trenches and weapons pits still remain.