EARTH/FIRECombination
"Pottering about"
The above coordinates are not to the cache.
This is one of the 2 sub-caches of the Paphos Elements, a series of 15 caches divided into 8 regular ones leading to 4 element caches which in turn lead to 2 sub-caches. Once you have found the 2 sub-caches, you will know the coordinates for the "FINAL" cache.
The art of making pottery was known as far back as 5000 BC; you fashion something from clay (earth) and then burn it (fire) for durability. I don't think the process has altered significantly since then.
This is a guide to how the caches connect.
