At the Published co-ordinates you will see a roadside sign in the shape of a well-known animal.
Write down all the letters and numbers on the sign (five letters, three numbers, plus one more letter)
Calculate the total value of all the letters (six of them) using the alphabet position of each letter as the individual letter value. Then add the three numbers as one number (e..g if the numbers are 4, 5 & 6, use a value of 456).
This will give you a number between 200 and 300. Let this number be "XXX"
The final location of the cache can be determined as follows:
Final Location = S29 49.(290 + XXX) E30 46.(881 - XXX)