Sakhalin - Russian island in North Pacific Ocean

"Sakhalin is the largest island of the Russian Federation, situated in the North Pacific Ocean between 45°50' and 54°24' N. It is administered as part of Sakhalin Oblast. Sakhalin, which is about one third the size of Honshu, is just off the Russian Pacific coast, and just north of the Japanese island of Hokkaido. The population of Sakhalin Island was 497,973 as of the 2010 census, made up of mostly ethnic Russians and a smaller Korean community. The indigenous peoples of the island are the Ainu, Oroks and Nivkhs. - Wikipedia"