We discovered the gorgeous path you walk on to get to GZ during local exploration in lockdown 2020. It isn't waymarked, but trailhead references are given for both the bottom and top of the permissive path across a field.
The cache is Chelsea the Cache-Laying Chook's 50th baby, and the first in the UK. We came across Chelsea in New Zealand. The cache was a large container holding several pill bottles complete with log sheets. The cache page reads: "When you come to find and sign this cache you can decide whether or not to 'hatch' one of Chelsea's cache eggs. This of course is optional but if you do decide to hatch one of Chelsea's eggs then please let me know and I will add the cache to the bookmarked list."
We duly took an egg and brought it back to Britain. It's number 50 in the series. Many thanks to gracie7 + Mum for the concept ❤❤❤👍👍👍😎😎😎.
Historical footnote (in celebration of Geocaching's 20th birthday):
BREEDER (GCE6B, now archived) was placed in California in 2001. The cache page says "It's a special cache in that it contains a CACHE LARVA inside of it. If you find the cache and you know of a good spot to hide another cache, but you just haven't got around to it, you can take the CACHE LARVA container out of the BREEDER cache and hide it." We discovered Number One Son (GCEA6), the first offspring of this cache, in February 2020, and were intrigued by the concept of breeder caches.