St Nicholas celebration in Katapola Square

Πανηγύρι Αγίου Νικολάου 2013 - Κατάπολα Αμοργός - YouTube

http://greece.greekreporter.com/2012/12/24/a-guide-to-greek-christmas/

A Guide to Greek Christmas.

"The Christmas season in Greece begins on December 6th, when the patron saint of the holidays Saint Nicolas, protector of sailors, is celebrated (which explains why many decorate boats instead of trees)"