Millions of years ago instead of the sound of the sea waves here the tranquillity would have been disturbed by the fire and explosion of erupting volcanos and the landscape would have been very different. The level of the land was much higher and over the years it has eroded so much that all that remains now are the more resistant igneous rocks which were formed below the surface.  On the right can be seen North Berwick Law and the distant seabird guano covered white Bass Rock which are the solidified magma plugs of volcanos.   The nearest island called The Lamb is formed from a sill which was a horizontal sheet intrusion and the further island of Craigleith is a laccolith which is a mushroom shaped magma which intruded into the surrounding area.  
The walk along the coastline from Gullane revealed many examples of previous volcanic activity with many intrusions, lava flows and types of igneous rocks on the cliffs and beaches.  East Lothian is so full of many different types of geological features.