The Sea of Japan is a marginal sea located between the eastern coast of the Asian continent and the Japanese archipelago. It is bordered by countries such as Japan, South Korea, North Korea, and Russia. The sea covers an area of approximately 978,000 square kilometers and has a maximum depth of about 3,742 meters. This sea is known for its rich marine biodiversity, including various fish species and marine mammals. It plays a significant role in regional climate patterns and is an important area for fishing and shipping activities. The Tsushima Current influences its water temperature and salinity, contributing to its unique ecosystem.