Firstly apologies that my blog has been quiet for a few weeks. I’ve been working on a bit of a Geocaching project!
I decided to try and compile a bookmark list of all of the UK’s underground caches. I severely underestimated the amount of time and effort that it’d take me to put it together, but finally it is done! It was one of those “I’ve started so I’ll finish” kinds of job which I didn’t want to abandon. It took days to find suitable caches with references to caves/mines/quarries/bunkers in the description, and then days to filter through them to find, for example, caves that were true caves and not little 1m by 1m holes in a rock! It then took days to update the information in the bookmark list so that details about the caches can be quickly obtained. All in all, it was about 3 weeks of work, on and off which ate a hole into my usual blogging time. I was overwhelmed by how many underground adventures there are lurking around our country!

UK Underground caches
The final product is called Going Underground and is available here. It is currently a list of 360 caches in the UK and Ireland that are either underground or near underground features. Some of the caches will require you to go into caves, tunnels, etc. to retrieve them, but some will just lead you to them ready for exploration. Some features will include miles of underground chambers, but others will just be small sea caves. There really is a mixture!
I’ve included a rating system in the bookmark list which is based on the following:
* – Mentions an underground feature, but not enough info to tell how good it is.
** – Mentions an underground feature, some information, but couldn’t be sure how good it was unless I visited.
*** – Mentions an underground feature, and it looks like a good place to visit.
**** – Mentions an underground feature, and it looks like great fun, will definitely try to visit one day.
***** – Mentions an underground feature, and the cache looks absolutely amazing. I MUST GO HERE WHEN I’M IN THE AREA OR MAKE A SPECIAL TRIP TO DO IT!
I’ve also added the 5 star and 4 star caches to separate shared bookmark lists so you can search through just the best (in my opinion) of underground caching.

An example of the entries on the list
It is of course, just a personal project because I wanted to find these caches. Some information may be inaccurate due to the shear number I had to process, and some caches may be missing. If you can think of any I’ve missed then please let me know and I’ll add them. For now, enjoy and I hope it comes in handy for other people too. I will attempt to update the list monthly/bi-monthly with recently published underground caches to help keep the list up to date as well!