Llanfair Slate Caverns

The Llanfair Slate Caverns are located near Harlech in Gwynedd. Grab a torch and helmet and descend on a self-guided tour of these man-made caverns. The slate found in this mine is found in veins between layers of ancient Pre-Cambrian rocks and they are among the oldest in the world.

Cavern No. 1 has an impressive overhead entrance. Here the last sunlight streams in before descending Jacobs Ladder. The tunnels and caverns you will see were man-made over 100 years ago with only a candle for lighting.

When you emerge from the caverns you will have a breathtaking view of Cardigan Bay. There are nine caverns in total to explore and the entrance has steps down into the caverns.

Further Information Llanfair Slate Caverns

Is there food and drink available?

There is a cafe serving hot and cold food and drinks.

What are the main things to do?

Underground caverns where slate was once mined, self-guided tour through 100-year-old mines. There are toilets and a cafe.

What are the ticket prices?

Adults £8.50, children £7.50, family tickets are available.
Prices are subject to change and/or discounts online.

Is there parking?

There is parking.

When are they open?

Llanfair slate caverns are open from Easter until the end of October. For up-to-date opening times and dates please visit their website.

Dog friendly?

Dogs are welcome.

Are they accessible?

Due to the nature of these caverns, the site is not wheelchair or pushchair accessible.