Strait of Tartary, Maritime passage between Sakhalin Island and mainland Russia
The Strait of Tartary is a waterway between Sakhalin Island and mainland Russia that connects the Sea of Japan with the Sea of Okhotsk. The channel varies considerably in width and has several areas of shallow depth.
The French navigator La Pérouse conducted the first detailed mapping of the strait's coastlines in 1787, when the western shores were still under Chinese control. This early knowledge shaped how later powers viewed the waterway.
The name comes from how Europeans referred to the historical region of Tartary, which covered large parts of Inner Asia ruled by various Turkic and Mongol peoples. Today the waterway matters mainly as a natural boundary between two major seas.
Shipping through the strait faces major challenges from November to May as ice blocks the passage and shallow sections limit what vessels can enter. Boats traveling during these winter months should expect delays and navigation difficulties.
In the 1950s, Soviet authorities proposed building a causeway across the strait to control water temperatures between the two seas. This ambitious project was never built but shows the scale of engineering dreams from that era.
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