The East China Sea and the Sea of Japan are around Korea.
The Yellow Sea
Sea of Korea
The Sea of Japan
The East Sea.
The Times called the sea between Korea and Japan the 'Sea of Japan' instead of the 'East Sea'.
Sea of Japan, Korea Bay, and maybe the Yellow Sea
Either the Korea Strait or the Sea of Japan.
China North Korea South Korea
Only the sea is south of Korea.
korean
The Yellow Sea