
Let’s try to recreate this atmosphere by taking a short trip to some of the places where age-old Christmas customs still survive:
In others, like the island of Kefalonia, women burn incense at the front door of their houses making the sign of the cross in order to repel these undesirable guests. Kalikantzari disappear from the surface on Epiphany Day when all the waters are blessed, as they are forced to return underground. However, due to the miracle of Christ’s birth, they find the earth’s tree trunk completely restored, so they start their mission to destroy it all over again.
Churches large and small, are magnificently lit and echo with the joyful melodies of bells. In some larger churches a pair of doves are released from the bell tower. During the ceremony, a cross is thrown in the waters –sea, lakes or rivers– in a ritual that revolves around the Great Blessing of the Waters. An impressive custom follows: any number of volunteers may dive and try to recover the cross. Whoever finds the cross returns it to the priest, who then delivers a special blessing to the swimmer and their household. The celebrations are accompanied by the sweet melodies of the Epiphany carols sung by children. The next day is dedicated to the great feast of St. John the Baptist, when the numerous Johns, Joans or Joannas celebrate their name day.
Source: https://www.visitgreece.gr/