This is a bonus cache linked to the 'West Hill Cemetery' Adventure Lab. To play the adventure, you'll need a smartphone and the Adventure Lab app loaded. To access the West Hill Cemetery lab, click the link HERE, or scan the QR code, where you'll find a full overview on the front page.
The answers to the lab questions can be found either in the lab descriptions or on the gravestones at the posted lab stage locations (so no Googling required). Please note that the cemetery is open between 07:00 and 22:00 everyday. The bonus cache is outside of the cemetery and can be accessed at all times. The D/T rating relates to the collection of the bonus numbers in the lab.
As mentioned, the bonus cache is not at the posted co-ordinates. To work out where it is, you'll need to complete the Adventure Lab and collect the bonus information in the journal entry of each stage.
The cache can then be found at: N51 03.ABC W001 19.DED
