An easy multistage cache in a nice small village of Athens 30 Km far away from centre of Athens.
1st Stage. Go at the coordinates 38° 12.647 N , 023° 48.591 E. There is a nice country church called Agia Triada. Is an ancient church with very nice frescoes and if is open take a look inside. The church and the around area are newly renovated. There you will find two numbers. The first is number 'A' and it is the number of petals of the carven daisy on the stone fountain opposite of the church door. The second is number 'B' and it is in a marble sign of the campanile.
2nd Stage. Calculate the coordinates :
North = 3780840 + (A*4012)
East = 2382417 - (B*17)
These coordinates will guide you in a nice point of view of the Beletsi Lake and the around area. Going there you will pass ahead of the lake, but don't stop, you will come back here and you will have time to rest in this nice place.
At the coordinates of this stage you will find a metallic cover with a serial number (i suppose). It's a line with letters and numbers. The first three numbers are the number D, the next three are the number C.
Final stage
The final coordinates are :
North = 38° 12.017+(2*C)
East = 23° 48.015+(2*D)
Have Fun !!!
You can check your answers for this puzzle on Geochecker.com
The Greek Geocaching site (Only in Greek)