The cache is NOT at the posted coordinates.
"This cache is part of an experiment that allows the use of Augmented Reality (AR) apps to find the cache. At the end of this experiment, Geocaching HQ will decide if this cache will be grandfathered or archived. Geocaching HQ reserves the right to archive this cache at any time if conditions change. If you have found this cache and would like to give feedback on your experience, please fill out this survey.”
To play this Augmented Reality geocache you will need to download an app called "metaverse". It is available on both android and ios devices.
Note: It has been reported on some iOS devices that the ringer volume must be on to hear the audio (not just the "media" volume). If you don't hear the audio please check your ringer setting.
My second "AR" cache. This one you can play the AR experience anywhere. When completed, it will provide you with the coordinates for the cache.
It is a simple little game to identify 10 songs from the year 1978. This is a sample of what I was listening to that year. I had fun trying to match the characters to the songs, I hope you enjoy it.
The "special tool required" attribute refers to needing a smartphone and this app.
To start the experience, either scan the QR code below, or use this link: https://mtvrs.io/LinenHeftyIncatern
Or, search for "1978" in the Metaverse app.

Links to the Cache Wall and Cache Poll
This cache is part of a series of puzzle caches hidden in the same area, which I've called the Lansdown Puzzle Series. They make an "L" shape on the map. See bookmark for the complete list.

Regarding the "Dangerous Animals Nearby". Please do not be alarmed. The Adder is our only venomous snake, the shy adder can be spotted basking in the sunshine in woodland glades and on heathlands. You are very unlikely to come across one here, and I have never seen one. But it is possible as they can be found across the country, except for the Isles of Scilly, the Channel Islands, Northern Ireland, and the Isle of Man.