Sumeunmulbaengdui Ramsar Site

Center, from north to south
Pasture and forests, southwest from the central watershed
Northern part of the central Watershed, from south to north

Sumeunmulbaengdui Ramsar Site

  • Country: 
    Republic of Korea
  • Site number: 
  • Area: 
    117.5 ha
  • Designation date: 
  • Coordinates: 
    33°21'N 126°26'E
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.


Sumeunmulbaengdui is a natural mountainous peat wetland on Halla Mountain or 'Hallasan', a shield volcano on Jeju Island and the largest mountain in the Republic of Korea. The Site is unique in the biogeographic region because of its geology and method of formation. It plays an important role in storing and recharging groundwater since Jeju, being a volcanic island, is short of water throughout the year due to irregular precipitation and low infiltration rate. Mostly, water is recharged by groundwater from wetlands, including Sumeunmulbangdui and the three other Ramsar Sites on the island. The geographic features of these Sites are all different: Sumeunmulbangdui is situated on the slope of the volcano, surrounded by six parasitic cones. The Site’s bedrock has a high water-retaining capacity and functions as a natural filter. The name ‘Sumeunmulbaengdui’ which means ‘a field covered with water and hidden by parasitic volcanoes’ in the local dialect, reflects the rarity of the site and surrounding landscape.

Administrative region: 
Jeju Special Self-Governing Province

  • Global international designation: 
    • UNESCO Biosphere Reserve
    • Other global designation
  • Last publication date: 


Ramsar Information Sheet (RIS)