Welcome! We run Slate Mountain Adventure, Llechwedd Deep Mine and Quarry Explorer. Make a booking for the allocated time you would like to visit us. Please be here at least 30 minutes beforehand.
Telephone: 01766 830306
Deep mine


Get ready for life in the Mine – Victorian style. Put on your overalls, check the lamp on your hard hat before travelling deep into the Mine and far back in time on the steepest cable railway in Britain.

Join Hywel, his 12 year old son Gwion and brother-in-law Gethin as they battle to survive the terrible conditions underground. Hear about the brave men who created some of the world’s biggest underground slate caverns, some the size of a Cathedral – share their triumphs and disasters as they struggled to win the slate. 

Have a go – with their primitive drills or lay a fuse before setting off your very own powerful blast 300ft underground or hang from a chain and try your hand at splitting a slate.  

The all new tour lasts a full hour and a half - although the time will fly past - there are 61 steps down 

We'd like you to enjoy Llechwedd Slate Caverns at your leisure. Therefore, when you book online we ask you to book a time slot so you are guaranteed that time, and please remember it is essential to be here at least 30 minutes before your chosen tour time.

Please ensure that you allow plenty of time to enjoy your tour and the rest of the attractions at Llechwedd Slate Caverns, and enough time between tours if you are also taking the Quarry Explorer tour.

Llechwedd Slate Caverns
Llechwedd Blaenau Ffestiniog Gwynedd LL41 3NB United Kingdom