Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Llechwedd Slate Caverns ← View details Slate Caverns, Blaenau Ffestiniog, Gwynedd County LL41 4NB, United Kingdom, Blaenau Ffestiniog, England