Manjanggul

Manjanggul
Hangul	만장굴
Hanja	萬丈窟
Revised Romanization	Manjanggul
McCune–Reischauer	Manjanggul

The Manjanggul Lava Tube is located Gimnyeong-ri, Gujwaeup, Jeju City and is 23 m in breadth and 30 m in height. As a lava tube stretches for as far as about 7,400 m, its length ranks amongst the top 15 in the world as well as it is a largest lava tube in Jeju island. It is regarded that has significant scientific and heritage value. This is because its condition of preservation is very well although it is estimated that it is formed quite a while ago (about 300,000 to 200,000 years ago). Lava stalactites and lava stalagmites, lava columns, lava flowstone, lava helictites, lava blisters, cave corals, benches, lava rafts, lava bridges, lava shelves, grooved lava striations, and ropy lava are preserved well. Among them, a lava column which is about 7.6m is know to be the largest in the world. There are three potential entrances and No. 2 heading southward is open to the public. Entrance No. 3 is most favorable habitats for cave life and between Entrances No. 1 and No. 2, there is a lower level main tube that most of the living creatures can be found. There is the greatest number of the living creatures in the Manjanggul Lava Tube including the Jeju cave-spider among the Geomunoreum Lava Tube System. Also in the upper part of entrance No.2, there are at least 30,000 long-winged bats forming the largest colony of bats confirmed to be living in Korea so far as is known.

See also

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

Reference

• "World Heritage sites (South Korea)". Korea Herald. 2010-03-30. http://www.koreaherald.com/national/Detail.jsp?newsMLId=20090715000101. 
• "Jeju volcanic island and lava tubes: Invaluable ecological treasure trove". Korea Herald. 2008-09-12. http://www.koreaherald.com/national/Detail.jsp?newsMLId=20090715000100. 
• "Jeju sites named UNESCO global geoparks". Korea Herald. 2010-10-04. http://media.daum.net/foreign/englishnews/view.html?cateid=1047&newsid=20101004170009770&p=koreaherald. 
• Jeju Special Self-Governing Provincial Tourism Association

External links

• Jeju Volcanic Island and Lava Tubes, UNESCO
• Jeju Special Self-Governing Provincial Tourism Association
• Jeju Special Self-Governing Province
• Jeju World Natural Heritage
• Cultural Heritage Administration of Korea