The Ochi Day is the second most important holiday in Greece.
Search this historic date.
Format: mm.dd.yyyy
A = mm + 15
B = yyyy - 1168
C = dd - 6
D = yyyy - 1247
FINALE:
N 36° A . B'
E 027° C . D'
Note:
The cache is a Nano.
You can use the First Greek Geocoin 2007 discovere.
Look in Hints. No log in the cache,no discovere the coin.