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Llanfair Slate Caverns

  • Harlech
  • Indoor
  • Ages 4+
  • Caves and Mines

Attraction Information

The entry to Llanfair Slate Caverns, this old but significant and famous slate mine, is through the majestic main tunnel, under the spooky twin arches of the crypt, and into the lofty cathedral cavern! High adventure, only really low down!

Remember that the tunnels and caverns you are about to see are all man made over a 100 years ago with only a candle for lighting so best for competently mobile kids not too shy about the dark!

Descend Jacobs ladder and wonder through the tunnels and chambers, and look for the old drilling holes, and the likeness of a human face in the mighty no 6 cavern. It might be stating the obvious but if your children aren't keen o the dark, or being enclosed, this probably isn't a good idea. As you emerge from the caverns, you face the breathtaking view of Cardigan Bay, from the Preseli mountains in the south to the Lleyn peninsular. Look down at Shell Island and the Artro estuary, and at low tide trace the fourteen mile long natural causeway of St Patrick.

Coaches welcome, special rates are available for parties. There's a children's farm park right next door and a picnic area is also available so why not make a day of it and do everything?!

Opening hours

Easter - Mid September
Monday to Sunday 10:00 - 17:00

Mid September - End September
Monday to Sunday 11:00 - 16:00

Mid October - End October
Monday to Sunday 11:00 - 16:00

Last Entry

1 hour before attraction closes


General Admission
Adults: £6.50
Kids: £5.50
Seniors: £5.75
Family (2 adults, 2 kids): £23.00

Travel & Contact Information


, Harlech, Gwynedd, LL46 2SA, Wales

Phone number

01766 780 247



Click here to visit Llanfair Slate Caverns' website.

FAQ & Additional Information

Yes, there is parking onsite.

Yes, there are toilets, accessible toilets and baby changing facilities.

Yes, there are baby changing facilities.

Llanfair Slate Caverns has not told us if you can bring a picnic.

Llanfair Slate Caverns has not told us about their dining options.

No, Llanfair Slate Caverns is not wheelchair friendly.

Yes, Llanfair Slate Caverns have stated they are pushchair friendly.

Llanfair Slate Caverns has not told us if they are dog friendly.

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