Another feature of great interest is that the structure is perched quite high above, and close to the edge of, a small inlet of the sea, and the above-mentioned aperture is on the seaward side. This results in the need to enter the Castle from below. Such a location also suggests a defensive aspect to the design. Combined with the quite strong resemblance to a pill-box or similar military structure, this leads one to speculate exactly what the Castle's architect designer had in his mind when building it.