A cache in a quiet part of the forest
This is a Reverse wherigo and is not at the posted co ordinates
First, you need the "Reverse-Geocache-Box", which tells you the distance to the final cache, but not the direction. The Cartridge from -Waldmeister- can be downloaded here.
You need three six-digit numbers to activate the cartridge which you can get by find by solving the jigidi

The landowner (Forestry Commission East England) does not assess the suitability or safety of the cache location. The cache placer and the cache finder have a responsibility to take reasonable precautions to protect their own safety and the safety of others. Hazards observed at or on route to the cache location should be reported to the cache placer. This cache is placed on accordance with the Forestry Commission East of England agreement.