This is the 12882nd most frequent Korean word.
도에서는
"도에서는" means "in the province" or "as for the province."
'도에서는' is used here to indicate that the statement applies specifically to Jeju Island ('제주도'). This forms a locative case emphasizing something within the province.
제주도에서는 자연 경관이 매우 아름답습니다.
In Jeju Island, the natural scenery is very beautiful.
'도에서는' specifies the province Gyeonggi ('경기도'), emphasizing events occurring within this region.
경기도에서는 다양한 문화 행사가 열립니다.
In Gyeonggi Province, various cultural events are held.
'도에서는' is used to focus on Chungcheong Province ('충청도') when discussing the prominence of traditional food there.