The Greeks have a habit of building chapels into caves. My wife visited a large one south of Chania, but one finds little chapels built into cliffs all the time. These are some photos I took on a rainy day in January of a chapel in Kalyves (a ten minute drive from where we live) dedicated to St. Anthony the Great of Egypt (251-356), considered to be the first of all monks. January 17th is his feast day in both Eastern Orthodoxy and the Catholic West (including the Anglican Communion). There will be a Divine Liturgy (i.e. Orthodox Holy Communion) there on that day.