What winter actually changes
The practical differences between visiting a monastery in August and in February.
The winter feast calendar
The days worth building a trip around, and what actually happens on them.
Orthodox Greece runs on a calendar, and the densest stretch of it falls in winter. Christmas is quieter and more domestic than its Western counterpart; Epiphany on 6 January sends a priest and a crowd to the water's edge, and somebody into it after a thrown cross. Clean Monday opens Lent with kites and shellfish rather than sackcloth, and seven weeks later Orthodox Easter is the largest thing that happens in Greece all year — book months ahead, and expect the country to move.
Dates for the movable feasts shift with the Orthodox calendar, so each event page carries the date for the coming season rather than a rule you have to apply yourself. The month-by-month calendar puts them in order.

