We spent the day in Castleton today for the AND Festival, going on 'Digital Dark Ages' and 'Listening to the Dark tours in Treak Cliff Cavern and Peak Cavern, then watching the old film Tremors on the screen towards the cave entrance above at night before attending Waterlicht, a smoke and lasers thing in Winnats Pass at night. A very different day!
An fantastic experience Louise. Like your view out through the cavern entrance (or exit - depending on how you look at it). It looks pretty dark in there!
Sounds like an interesting day/evening.
https://www.andfestival.org.uk/about-us/