Cache is not at the listed coordinates.

To get to the final you have to know the letters of the words.

With the letters, there are still some more steps to take.

Check your coords,

otherwise you might just get a fake.

Don't use Google.

The rules you might bend

and your mind you will boggle.

However, GCC is your friend.

5 T on a F

First letters goes with South

Add worked out letters minus 1538 to South

Second letters goes with East

Add worked out letters plus 746 to East