The cache can be found at:
N24 AA.BBB E121 CC.DDD
To get the missing numbers simply follow the instructions below.
AA
Go into the church. Count the number of small windows (the small ones are the highest ones). Then count the number of decorative wooden plaques hanging on the walls inside. (Like this one.)
Add together the two numbers to get AA.
BBB
Find this shape on the back of one of the buildings. What is inside the shield?
A circle and a cross = 502
A dove and a leaf = 639
A heart and a cross = 001
A sun and a moon = 474
CC
The main door or the circular church is decorated in large flowers. Count the number of flowers on both panels of the main door. 
Behind the church you'll find some covers like these set into the grass. Count how many of these you can see in a line. 
Then take a short trip over to the cave where Mary Magdalene listens to people's prayers. Outside the entrance to the cave you can see some Chinese characters to the left of the doorway. How many characters are there?
CC = the number of flowers + the number of covers + the number of characters.
DDD
Opposite the main entrance to the church there is a tile set into the plaza floor which tells you how high the church is above sea level. Find this number and then add 530.
DDD = how high the church is above sea level + 530
You can check your answers for this puzzle on GeoChecker.com.