The slate in this mine, which is found in veins between layers of ancient Pre-Cambrian rocks, is among the oldest in the world. Many industrial towns in Britain and Ireland have the original roofs made of Llanfair slate.
A remarkable underground experience. Abandoned in 1903 but now reopened to visitors, Sygun tells the story of Victorian miners. Nowadays, it’s hard to believe that such gritty industrial heritage exists amongst so much natural beauty.