Manjanggul
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The Manjanggul Lava tube, Lava Tube is located in Gimnyeong-ri, Gujwaeup, Jeju City. At up to 23 metres (75') wide, 30 metres (100') high and 8.928 km (5½ miles) long, it is the 12th-longest lava tube in the worldhttp://www.caverbob.com/lava.htm and the second longest on Jeju island. It is regarded as having significant scientific and heritage value, owing to its excellent condition of preservation despite its age of formation (about 300,000 to 200,000 years ago). Lavacicles, Lava stalactites and lava stalagmites, Basalt#Columnar basalt, lava columns, lava flowstone, lava helictites, lava blisters, Cave popcorn, cave coral, benches, lava rafts, lava bridges, lava shelves, grooved lava :wikt:striation, striations, and ropy lava are well-preserved. Among them, a lava column of 7.6 metres (25') is the largest known in the world. There are three entrances and No. 2 heading southward is open to the public. Entrance No. 3 contains the most favorable habitats for cave life and between Entrances 1 and 2, there is a lower level main tube where most of the living creatures can be found. In the Geomunoreum Lava Tube System, the Manjanggul Lava Tube has the greatest number of living creatures, including the Jeju cave-spider. In the upper part of Entrance 2, there are at least 30,000 Common Bent-wing Bat, common bent-wing bats forming the largest colony of bats confirmed to be living in Korea so far.


See also

*List of World Heritage Sites in South Korea *Jeju Volcanic Island and Lava Tubes *Seongsan Ilchulbong *Hallasan *Jeju-do *the Geomunoreum Lava Tube System *Gimnyeonggul


References

* * *
Jeju Special Self-Governing Provincial Tourism Association


External links


Jeju Volcanic Island and Lava Tubes, UNESCOJeju Special Self-Governing ProvinceJeju World Natural HeritageCultural Heritage Administration of Korea
{{coord, 33.5282, 126.7701, type:landmark_region:KR, display=title Lava tubes Caves of Jeju Province