Sea of Okhotsk

Sea of Okhotsk, (Russian Okhotskoye More), northwest arm of the Pacific Ocean. Covering an area of 1,528,000 sq km (590,000 sq mi), it is bounded on the east by Kamchatka Peninsula Peninsula, on the southeast by the Kuril Islands, on the southwest by the Japanese island of Hokkaidō, and on the west by the island of Sakhalin and the far eastern coast of Russia. The sea, rich in marine life, freezes over during the winter months and is frequently covered with fog.