The entrance to the cave is four feet high and four feet wide, and is in the face of a lofty perpendicular cliff--the sea-wall.

You enter in small boats--and a tight squeeze it is, too.

You can not go in at all when the tide is up.

Once within, you find yourself in an arched cavern about one hundred and sixty feet long, one hundred and twenty wide, and about seventy high.

How deep it is no man knows.