Rock Of Ages and American Falls from below Niagara Falls. Centre Fall issues from between Luna and Goat shore foot. Under the Falls is a place called Cave of the Winds, formed by thirty feet of projecting limestone that has resisted the action of the corroding waters while the shady substratum directly under the ledge has been eaten away. The so-called cave is one hundred feet in height and sixty feet in depth and can be reached by a perpendicular winding stairway from Goat Island. The cave derives its name from the constant pressure of the atmosphere caused by the reflex of the falling water which resembles a storm of great violence.