Overview
Tsushima Island is an island of the Japanese archipelago situated in-between the Tsushima Strait and Korea Strait, approximately halfway between the Japanese mainland and the Korean Peninsula.
Description
Tsushima, archipelago, northwestern Nagasaki ken (prefecture), off the coast of southeastern Japan. The islands lie in the Korea Strait separating Japan and Korea and divide the strait into the Tsushima Strait (west) and the Korea Strait (east). The archipelago consists principally of two rocky islands, Kami and Shimo, which are separated at one point by a narrow channel. Kami has an area of 98 square miles (255 square km), while Shimo has an area of 174 square miles (450 square km).