This is a Bonus Cache that can be done after finding the 5 lab caches in Reach.
You will collect 6 numbers as you log the correct answers to the lab caches.
If you forget to write them down you can visit the journals at the end.
The cache is not at the posted coordinates, to find the cache go to
N 52 16.ABC E 000 17. DEF
Stagecoach no 11 bus stops in the village Monday to Saturday