Кунашир
Russia, alongside Canada, is one of the world's only two countries with a coast along three oceans, due to which it has links with over thirteen marginal seas. Russia's major islands and archipelagos include Novaya Zemlya, Franz Josef Land, Severnaya Zemlya, the New Siberian Islands, Wrangel Island, the Kuril Islands, and Sakhalin. The Diomede Islands are just apart, and Kunashir Island is just from Hokkaido, Japan.