▁Who ▁episode ▁to ▁be ▁fil med ▁in ▁high - definition , ▁prior ▁episodes ▁having ▁been ▁fil med ▁in ▁standard - definition ▁and ▁then ▁ups c aled ▁for ▁broadcast ▁on ▁BBC ▁HD . ▁The ▁two ▁major ▁film ing ▁locations ▁of ▁" Plan et ▁of ▁the ▁Dead " ▁were ▁the ▁desert ▁of ▁Dub ai ▁was ▁used ▁for ▁scenes ▁on ▁the ▁" plan et ▁of ▁the ▁dead "; ▁and ▁the ▁Queen ' s ▁Gate ▁T unnel ▁in ▁But et own , ▁Card iff ▁was ▁used ▁for ▁the ▁majority ▁of ▁Earth - bound ▁scenes . ▁▁ ▁Fil ming ▁for ▁" The ▁W aters ▁of ▁Mars " ▁began ▁on ▁ 2 3 ▁February ▁ 2 0 0 9 . ▁In ▁late ▁February , ▁David ▁T enn ant , ▁Dun can ▁and ▁other ▁actors ▁were ▁seen ▁film ing ▁in ▁Victoria ▁Place , ▁New port . ▁The ▁film ing ▁took ▁place ▁on ▁a ▁city ▁street , ▁which ▁the ▁production ▁team ▁covered ▁with ▁artificial ▁snow . ▁The ▁glass house ▁scenes ▁were ▁fil med ▁in ▁the ▁National ▁Botan ic ▁Garden ▁of ▁Wales , ▁Car mar th ens hire . ▁The ▁first ▁location ▁film ing ▁for ▁" The ▁End ▁of ▁Time " ▁took ▁place ▁on ▁Saturday , ▁ 2 1 ▁March ▁ 2 0 0 9 ▁at ▁a ▁book store ▁in ▁Card iff . ▁Jess ica ▁H yn es ▁was ▁fil med ▁signing ▁a ▁book ▁titled ▁A ▁Journal ▁of ▁Im possible ▁Things , ▁by ▁Ver ity ▁New man . ▁ ▁The ▁spe ci als ▁were ▁produced ▁as ▁follows : ▁ ▁Release ▁ ▁Broadcast