Iturup Island is the largest island in the Kuril Islands chain, located between the Sea of Okhotsk and the North Pacific Ocean. It is part of Russia and has a diverse landscape that includes volcanic mountains, hot springs, and lush forests. The island is known for its rich biodiversity, featuring various plant and animal species. The island's population is small, primarily consisting of Russian settlers and indigenous Ainu people. Iturup has a history of territorial disputes, particularly with Japan, which also claims the island. The economy is mainly based on fishing, tourism, and natural resources.