▁be ▁between ▁ 6 0 0 ▁and ▁ 1 0 0 0 ▁years ▁old , ▁and ▁therefore ▁pre - dates ▁the ▁castle ▁itself . ▁ ▁The ▁raised ▁terra ce ▁contains ▁an ▁impos ing ▁Renaissance ▁arch , ▁probably ▁d ating ▁from ▁the ▁ 1 5 9 0 s . ▁The ▁Old ▁Dutch ▁garden ▁contains ▁ancient ▁y ew ▁to pi ary ▁and ▁an ▁oct ag onal ▁f ount ain . ▁The ▁Royal ▁and ▁States man ' s ▁gard ens ▁contain ▁Wel sh ▁O aks ▁plant ed ▁during ▁the ▁royal ▁visit ▁of ▁ 1 8 9 9 , ▁and ▁in ▁ 1 9 1 1 . ▁An ▁Elizabeth an ▁cause way ▁called ▁the ▁Chinese ▁Walk ▁runs ▁across ▁the ▁fields ▁to ▁the ▁River ▁Con wy , ▁where ▁the ▁remains ▁of ▁the ▁G w yd ir ▁Qu ay ▁can ▁be ▁seen . ▁The ▁River ▁Con wy ▁was ▁tid al ▁up ▁to ▁this ▁point , ▁but ▁sil ting ▁has ▁limited ▁most ▁t ides ▁to ▁below ▁G ow ers ▁Bridge . ▁ ▁G w yd ir ▁U ch af ▁Chap el ▁G w yd ir ▁U ch af ▁Chap el , ▁in ▁the ▁woods ▁above ▁G w yd ir ▁Castle , ▁was ▁built ▁in ▁ 1 6 7 3 ▁by ▁Sir ▁Richard ▁W yn n ▁as ▁a ▁family ▁mem orial ▁chap el ▁for ▁the ▁W yn ns ▁of ▁G w yd ir . ▁The ▁simple ▁exterior ▁provides ▁a ▁direct ▁contrast ▁with ▁its ▁beautiful ly ▁painted ▁ce iling , ▁dep ict ing ▁the ▁Cre ation , ▁the ▁Tr inity ▁and ▁the