Rainwater on the ground surface permeates
into the underground for about 18 to 22 years and becomes
clear groundwater. Where did the rainwater, the source of Jeju Samdasoo, come from
Groundwater does not flow like a river,
but it exists between the cracks and openings between rocks.
It doesn’t stay still, but slowly and continuously permeates
into the rocks of the deeper ground,
creating more clear groundwater.
Rainwater on the clean ground surface,
passes through countless layers of lava that filter out any contaminants.
Because this area is rarely disturbed by people,
the surrounding environment remains in its natural state.