Dong Manjanggul
Jeju
Dong dung nham khong lo dai khoang 7,4 km o phia dong Jeju, duoc UNESCO cong nhan la Di san Thien nhien The gioi. Noi that dong nham duoc khac tao boi dong chay dung nham nui lua, bao ton nhieu hinh thai nui lua bao gom mang nham va tram tich nham. Du khach co the kham pha doan cong cong dai khoang 1 km va trai nghiem khong gian mat me, bi an cua dong. O cuoi doan mo cua la cot dung nham cao 7,6 met - lon nhat the gioi - la diem chup anh bat buoc. Khong khi lanh va khong gian dong toi tang, rong lon goi len bau khong khi bi an sau sac va day kinh ngac.