Dylife has many adits ..... There is a small lead mine close and behind the Star Inn with coiled up fencing (passable) in the bottom entrance and an easy entrance higher up.
On the opposite side there are three adits and stupidly large shaft. The "main" is blocked after a couple hundred feet but someone was digging in there a few years ago.
On the other side of the "hill" (back of the mine) is a mostly hidden small adit entrance (pretty much covered by a bucket). When you go through it you slip into a large size adit (wide and deep) with water at least chest height. I decided not to go in as it was substantial and needed a dingy really (never got round to it). I think that was the drainage adit and would allow access to all the workings on the other side that the dig was heading at.
There was also a belly crawl entrance on the wrong aide which seemed to be heading no where.
Lastly, some Roman surface workings and a shaft further up.
There is a book on all of this called "Dylife" by Michael Brown.
Ian