There are over 360 parasitic volcanoes on Jeju Island most of which have no craters. Those that do have craters shaped like upturned bowls or horseshoes. However Sangumburi Crater which was formed by an explosion without the ejection of lava or volcanic ash has one single hole known as the Marr crater. It is the rarest type in Korea and indeed the world.
Sangumburi Crater was designated as Natural Monument No. 263, the reason being that the plants growing inside the crater have been isolated even from the plants in Mt. Halla. Because of this phenomenon, they have become valuable resources for studying the geographical distribution of plants. Add this from the priceless value of the crater itself for geological study and you can see why Sangumburi crater is so unique.
Sangumburi is located in Gyorae-ri, Jocheon-eup, Jeju City 400 meters above sea level with an exterior circumference of 2,067m and an interior circumference of 756m. Its height is 438m, its depth 132m and it is 300,000m².About 450 species of plants grow in Sangumburi. On the exterior sides of the volcano are pampus grass colonies, producing a spectacular fall display. The interior slope of the crater shows a wide range of vegetation with seasonal variations depending on the amount of sunlight.
Sangumburi crater is regarded as having a high academic value because of the well preserved Ligustrum ovalifolium community, Orixa japonica community, Adonis multiflora community and Eranthis byunsanensis community which are rarely found anywhere else.
The crater is also well-known as a habitat for various wild animals ranging mammals including roe deers and badgers, to birds and reptiles.
The beautiful that you can also enjoy while walking with loveone, family or friends.
You know that you are in Sangumburi if you see this cones or bell shapes outside.