▁she ▁was ▁re - design ated ▁as ▁a ▁ 1 st - class ▁coast - def ense ▁ship . ▁On ▁ 2 6 ▁June ▁ 1 9 2 2 , ▁I w ate , ▁accompanied ▁by ▁Iz um o ▁and ▁Y ak um o , ▁began ▁a ▁circ umn avigation ▁of ▁the ▁world ▁that ▁took ▁them ▁to ▁Hawai i , ▁Los ▁Angeles , ▁California , ▁through ▁the ▁Pan ama ▁Canal ▁to ▁Rio ▁de ▁Janeiro , ▁where ▁the ▁cad ets ▁viewed ▁the ▁Independ ence ▁Cent en ary ▁International ▁Ex position ▁comm emor ating ▁Brazil ian ▁independence . ▁The ▁ships ▁then ▁visited ▁Buenos ▁Aires , ▁Argentina ▁and ▁Dur ban , ▁South ▁Africa ▁before ▁heading ▁home ▁via ▁the ▁Indian ▁Ocean , ▁where ▁they ▁arrived ▁on ▁ 8 ▁February ▁ 1 9 2 3 . ▁▁ ▁In ▁ 1 9 2 4 , ▁four ▁of ▁I w ates ▁ 1 2 - p ound er ▁guns ▁were ▁removed , ▁as ▁were ▁all ▁of ▁her ▁Q F ▁ 2 . 5 - p ound er ▁guns , ▁and ▁a ▁single ▁ 8   cm / 4 0 ▁ 3 rd ▁Year ▁Type ▁anti - air craft ▁( AA ) ▁gun ▁was ▁added . ▁Ref itted ▁again ▁in ▁ 1 9 3 1 , ▁her ▁tor ped o ▁tub es ▁were ▁removed ▁as ▁were ▁all ▁of ▁her ▁main ▁deck ▁ 6 - inch ▁guns ▁and ▁their ▁cas em ates ▁pl ated ▁over ; ▁she ▁now ▁carried ▁only ▁two ▁ 1 2 - p ound ers , ▁although ▁she ▁now