This cache leads you to a place where you have an excellent 270° view of most of the northern coast of Sicily and the Parco Regionale delle Madonie. The history of the Christian shrine you're looking for goes back into the 6th century. Next to the building you'll find a statue with some dates on its base. Find the year Y of the date starting "iv OCT", the number consists of 7 Roman numerals, the checksum is 11.
Y = _ _ _ _
Now perform the simple maths:
A = Y - 993 = _ _ _ (N start)
B = Y - 1143 = _ _ _ (E start)
C = Y - 552 = _ _ _ (N crotch)
D = Y - 689 = _ _ _ (E crotch)
E = Y - 512 = _ _ _ (N Final)
F = Y - 278 = _ _ _ (E Final)
Stages:
Start: N37°59.A E014°01.B
Crotch: N37°59.C E014°01.D
Final: N37°59.E E014°01.F
As we are not living in Sicily, our friend Zicus is maintaing the cache.