Just present your Cadw or Llechwedd Slate Caverns admission ticket (or your Cadw membership card) at the other site to receive your discount.
Discount is valid on any single ticket to the second attraction visited, up to and equal to the ticket type purchased from the first attraction (whether adult, child or family).
The second attraction must be visited within 7 days of the first. Not to be used in conjunction with any other offers.
For more information please call:
Harlech Castle (LL46 2YH) 01766 780552
Llechwedd Slate Caverns (LL41 3NB) 01766 830306