It has long been known that the world and everything in it are made up for four elements. They are Earth, Air, Fire, and Water. Recently however scientists at GCU (Geo-Caching University) have discovered a fifth element. That element is the Plastic, a material commonly used in the construction of geocaches.
A cache made of that material has been hidden somewhere along the south coast. To find it you must first locate four other caches representing the four original elements. Each of these four caches contains part of the coordinates to the fifth element cache.
To locate this cache you must first find the following caches to get the four partial coordinates.
A is in "Earth" GC6MNMA
B is in "Air" GC6MQ3C
C is in "Fire" GC6ME68
D is in "Water" GC6MCZK
The final coordinates are N 34 A.B W 119 C.D