Arthur's Seat.

Hutton looked at Salisbury Crags and saw that there were sedimentary rocks split and tilted and intruded upon by basalt and other volcanic rocks, and that those rocks in turn had been destroyed and swept away by the amazing forces of glacial action. He is now called the father of Geology.

This stone was once at the bottom of the sea. Today is part of the Radical Road that skirts Salisbury Crags.

Can you imagine the waves that made this pattern in the sand before it was cast in stone for us to see today?