The Soya Strait is a narrow body of water located between the northern tip of Japan's Hokkaido island and Sakhalin, a Russian island. It connects the Sea of Japan to the Okhotsk Sea and serves as an important maritime route for shipping and fishing activities in the region. The strait is approximately 43 kilometers long and varies in width, with its narrowest point being around 25 kilometers. It is known for its rich marine biodiversity, including various fish species, and plays a significant role in the local economy and ecology of both Japan and Russia.