There aren't any metro or subway process within the island. Google maps would not get the job done well in Korea, download Naver Maps for correct general public transportation strains and timetables. Get a T cash or Cashbee card to pay for the bus. You can purchase in the airport https://elliottc085wem2.blogdemls.com/28119507/the-greatest-guide-to-beginners-guide-to-jeju-제주유흥-island