A cache which takes you to a unique viewpoint of Lagos to the West and Alvor to the East with the wonderful sand of Meia Praia in between. If you don't understand the significance of the title after completing the cache you may like to look the word up for it's fifth meaning! (http://www.chambersharrap.co.uk/chambers/features/chref/chref.py/main?query=mole&title=21st)
At the given coordinates you will find a navigational feature. Examine it closely, and you will find a three-letter word (ABC). (see hint)
Using standard letter substitution, A = 1, B = 2... ---> Z = 26, arrive at the values for the letters in the word you have found and substitute in the formula below. I have not used the first letter as it is ambiguous!
Bx(B + C) + (B + C) = XY
On the eastern side of the navigational feature on the ground you will see a large stone marked '0'
Starting with this stone as zero, walk back the way you came on the right hand side,(eastern), counting the complete stones you tread until you reach 'XY'
The final cache is now on your right hand side around 3-5 metres away.
Be careful when trying to reach the cache.
This is one reason why terrain is a ***
The other reason is that you may be seen by muggles unless you pick a time when they are not around!