South Korea's tourist routes for most people in Jeju Island and Seoul's 38th parallel?

Panorama of Seoul+Jeju+Busan, South Korea.

It will take a long time for Seoul to take the fastest high-speed train to Jeju.

To fly from Seoul to Jeju Island, you can only go by plane, which takes 1 hour.

South Korea, the land area is equivalent to a province in China. South Korea is subdivided into this category by the 38th parallel between Jeju Island and Seoul.