Stone Curtains in the Dim Light

 These awesome formations, resembling curtains or banners, look like stone fangs or petrified cloaks suspended in the void. Also, they look like the Davy Jones' tentacle-beard from Caribbean Pirates movie.

The texture of the rock and the pronounced folds, sculpted by water, create an almost somber, Gothic visual effect, perfect for heightening the mystery of the Cueva del Puerto as Halloween approaches.