▁Sh im ush ir u ▁Ka ik yo ) ▁is ▁a ▁deep ▁stra it ▁that ▁separ ates ▁the ▁islands ▁of ▁K eto y ▁and ▁Sim ush ir ▁in ▁the ▁Kur il ▁Islands , ▁Russia . ▁It ▁is ▁ 1 6 . 1 ▁km ▁( about ▁ 1 0 ▁mi ) ▁wide . ▁The ▁flo od ▁tid al ▁current ▁in ▁the ▁stra it ▁sets ▁north west , ▁while ▁the ▁e bb ▁flows ▁to ▁the ▁sout heast . ▁These ▁curr ents ▁may ▁reach ▁up ▁to ▁three ▁kn ots . ▁ ▁History ▁ ▁American ▁wh ales hips ▁in ▁the ▁ 1 8 4 0 s ▁and ▁ 1 8 5 0 s ▁occasionally ▁used ▁the ▁stra it ▁to ▁enter ▁and ▁exit ▁the ▁Sea ▁of ▁Ok hot sk ▁on ▁their ▁way ▁to ▁and ▁from ▁cru ises ▁for ▁bow head ▁and ▁right ▁wh ales . ▁ ▁References ▁ ▁Category : Sim ush ir ▁Category : St ra its ▁of ▁the ▁Kur il ▁Islands <0x0A> </s> ▁Ch ich ester ▁is ▁a ▁largely ▁rural ▁local ▁government ▁district ▁in ▁West ▁Sus sex , ▁England . ▁ ▁Its ▁council ▁is ▁based ▁in ▁the ▁city ▁of ▁Ch ich ester . ▁ ▁History ▁The ▁district ▁was ▁formed ▁on ▁ 1 ▁April ▁ 1 9 7 4 , ▁under ▁the ▁Local ▁Government ▁Act ▁ 1 9 7 2 , ▁as ▁a ▁mer ger ▁of ▁the ▁municipal ▁bor ough ▁( city ) ▁of ▁Ch ich ester ▁and ▁the ▁R ural ▁District s ▁of ▁Mid h urst , ▁Pet worth ▁and ▁part ▁of ▁the ▁former ▁Ch ich