There is a choice of two parking areas from which to start your search which will only be published on the cache listing for #1. The terrain rating reflects the length of the walk. The hides are all different and many are custom-made. You will need a pen to record your finds.
From #12 take the path towards the wood. Cross the bridge and exit the wood in the campsite. The path goes between the toilet block on the left and the main house and enters the next bit of woodland by a small children's slide.
UPDATE
The cache has been replaced and is now a different type of hide. You do not need to go through nettles as there is a path to the cache. Good luck!
The caches all adhere to the East of England Forestry Commission guidelines.