Jeju's columnar joint - by Kang Kun

Along the south coast cliffs around the International Convention Center Jeju in Jungmun, there are some magnificent natural wonders. Jusangjeolli Cliff is a great piece of natural art which has taken the form of polyhedron-shaped hardened lava back when Jeju Island was forming. Location: Yaeryae-dong, Seogwipo City

Kang Kun is a professional photographer based in Jeju. You can see more of his work on his blog and Flickr.