"Pillar-shaped Joints can be found along a 3.5km stretch of the Jungmun-dong and Daepo-dong seashore in Seogwipo, Jeju Island.
The surface of the volcanic rock is rough with clinkers but the mid-section of the lava units, exposed through erosion, forms a beautiful line of points that is like a landscape painting.
In size, the bigger points are up to 20m high and from top to bottom they are clean and varied in shape.
Found along eroded sea cliffs, they are mostly upright, though some are horizontal, and their upper sections are square or hexagonal.
Through erosion, the exterior is well exposed and as they are close together they look like an elaborate work of sculpture.
The Pillar-shaped Joints along the Jungmun-dong and Daepo-dong seashore are important geological features enabling study and observation of the results of basalt lava hardening and later development of the coastal topography through erosion.
This area, therefore, is valuable for academic purposes and for its spectacular scenery."