How long did it take?
The steep sandstone cliffs along the Cave of the Lakes have been weathered by wind and water for millions of years.
Why is erosion related to it?
Erosion is the process of eroding or being eroded by wind, water, or other natural agents. The erosional action has formed caves inside.
Wear away or change the appearance or texture of something overtime. The rock inside the cave changes overtime by the wind and water.