tr ys ide . ▁The ▁w ard ▁was ▁completely ▁w alled ▁and ▁completely ▁independent ▁of ▁the ▁outer ▁w ard . ▁It ▁could ▁only ▁be ▁accessed ▁through ▁an ▁inner ▁gate house ▁half - way ▁along ▁the ▁western ▁wall ▁of ▁the ▁outer ▁w ard , ▁crossing ▁the ▁mo at ▁by ▁means ▁of ▁a ▁draw bridge . ▁This ▁arrangement ▁meant ▁that ▁an ▁attack er ▁would ▁have ▁to ▁capture ▁the ▁outer ▁w ard ▁before ▁being ▁able ▁to ▁assault ▁the ▁inner ▁one . ▁The ▁w ard ' s ▁cur tain ▁wall ▁still ▁stands ▁to ▁a ▁height ▁of ▁between ▁ 3 – 6 ▁metres ▁( 1 5 – 3 0   ft ). ▁Two ▁of ▁its ▁to wers , ▁in ▁the ▁south - east ▁and ▁north - west ▁corners , ▁still ▁stand ▁to ▁a ▁height ▁of ▁about ▁ 7 ▁metres ▁( 3 4   ft ) ▁but ▁the ▁north - east ▁tower ▁has ▁disappeared ▁and ▁the ▁south - west ▁tower ▁has ▁col lapsed . ▁There ▁are ▁traces ▁of ▁buildings ▁along ▁the ▁inside ▁of ▁the ▁walls ▁of ▁the ▁inner ▁w ard , ▁which ▁were ▁pres umably ▁the ▁domestic ▁buildings ▁of ▁the ▁castle . ▁In ▁the ▁north - east ▁corner ▁of ▁the ▁inner ▁w ard ▁the ▁ru ins ▁of ▁a ▁v ault ed ▁under cro ft ▁surv ive ▁under ▁what ▁was ▁once ▁the ▁Great ▁Chamber ▁of ▁the ▁castle . ▁ ▁Gate house ▁ ▁The ▁outer ▁gate house ▁is ▁the ▁castle ' s ▁most ▁prominent ▁surv iving ▁feature ▁and ▁ad jo ins ▁the ▁Cl iffe ▁to ▁C ool ing ▁road . ▁It