To find this cache you will need to use π and another number which naturally complements it.
The cache is located at:
S 36 55.(the three digits starting from the 1681st decimal place of π)
E 174 42.(the three digits starting from the 2156th decimal place of the number that naturally complements π)
If you add all 6 numbers that you have found and then the two resulting digits you should end up with 9.
If you've found this you should also have a go at Pi which inspired this and you will have no trouble solving.
