Iony Island is the only island in the Sea of Okhotsk that is located in the open sea. All other islands in the Okhotsk Sea are either coastal islands or they belong to the Kuril island chain.[2][3] It is 1.6 km (1 mi) in length and 850 m (0.53 mi) wide and rises to a height of 165 m (541 ft). The island is barren and conical in shape with sheer cliffs rising to heights of 30 to 45 m (98 to 148 ft).
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