Under pressure

Here is another image from my recent visit to the cave at Downpatrick Head. This cave has a double entrance I wondered about the amount of pressure that the column you can see at the mouth of the cave must be under, both from the sea when the cave fills with water and of course with the weight of the headland above it. I am sure it will stand for many thousands of years yet, but when you are there these thoughts do add to your sense of vulnerability and I suppose awe at the power of nature.