2 0 0 6 ▁and ▁March ▁ 2 0 1 0 ▁the ▁bridge ▁was ▁subject ▁to ▁works ▁designed ▁to ▁ensure ▁its ▁lon ge vity . ▁The ▁work ▁included ▁some ▁strength ening . ▁ ▁Since ▁ 2 0 1 3 , ▁two ▁g rit - blast ing ▁rob ots ▁spe cially ▁developed ▁with ▁the ▁University ▁of ▁Technology , ▁Sydney ▁have ▁been ▁employed ▁to ▁help ▁with ▁the ▁paint ▁stri pping ▁operation ▁on ▁the ▁bridge . ▁The ▁rob ots , ▁nick named ▁Ros ie ▁and ▁Sand y , ▁are ▁intended ▁to ▁reduce ▁workers ' ▁potential ▁expos ure ▁to ▁dangerous ▁lead ▁paint ▁and ▁as best os ▁and ▁the ▁bl ast ing ▁equipment ▁which ▁has ▁enough ▁force ▁to ▁cut ▁through ▁clothes ▁and ▁skin . ▁ ▁Tour ism ▁ ▁South - east ▁p yl on ▁Even ▁during ▁its ▁construction , ▁the ▁bridge ▁was ▁such ▁a ▁prominent ▁feature ▁of ▁Sydney ▁that ▁it ▁would ▁attract ▁tour ist ▁interest . ▁One ▁of ▁the ▁on going ▁tour ist ▁attra ctions ▁of ▁the ▁bridge ▁has ▁been ▁the ▁south - east ▁p yl on , ▁which ▁is ▁accessed ▁via ▁the ▁ped est rian ▁walk way ▁across ▁the ▁bridge , ▁and ▁then ▁a ▁clim b ▁to ▁the ▁top ▁of ▁the ▁p yl on ▁of ▁about ▁ 2 0 0 ▁steps . ▁ ▁Not ▁long ▁after ▁the ▁bridge ' s ▁opening , ▁comm encing ▁in ▁ 1 9 3 4 , ▁Arch er ▁Whit ford ▁first ▁converted ▁this ▁p yl on ▁into ▁a ▁tour ist ▁destination . ▁He ▁installed ▁a ▁number ▁of ▁attra ctions , ▁including ▁a