Strait of Tartary

Strait of Tartary or Gulf of Tartary (Russian: Татарский пролив; Chinese: 韃靼海峽; pinyin: Dádá hǎixiá; Japanese: 間宮海峡, romanized: Mamiya kaikyō, lit. 'Mamiya Strait'; Korean: 타타르 해협) is a strait in the Pacific Ocean dividing the Russian island of Sakhalin from mainland Asia (South-East Russia), connecting the Sea of Okhotsk (Nevelskoy Strait) on the north with the Sea of Japan on the south. It is 632 kilometres (393 mi) long, 7–342 kilometres (4.3–212.5 mi) wide, and less than 210 m (690 ft) deep at its deepest point.