Kunashir island of the South Kuril Islands (Chishima).Pictured: Geothermal Electric Power Station on Kunashir island producing electricity for the island`s needs. Kunashir (Japanese: 国後島 Kunashiri ) is the southernmost island of the Kuril Islands / Chishima and Kunashir is visible from the nearby Japanese island of Hokkaidō from which it is separated by the Nemuro Strait. .