Analysis of information sources in references of the Wikipedia article "ช่องแคบสึชิมะ" in Thai language version.
The strait, which is 300 feet (90 m) deep, is bisected by the Tsushima islands, the passage to the east being often referred to as Tsushima Strait.
between 3 nm and 12 nm in the international straits - La Perouse or Soya, Tsugaru, Osumi, and Eastern and Western Channels of the Korea or Tsushima Strait
