1. install kakao map application
https://map.kakao.com/info/kakao_map
Kakao map supports english menu
and you can find bus information and route to the destination and also use navigation.
2. touch below link and open with kakao map
[KakaoMap] hot place
recommend places in jeju
http://dmaps.kr/a4dyg
[KakaoMap] gasiri near Romantopia
http://dmaps.kr/a4eph