This is an event being organised by Llechwedd Slate caverns, not a Merched Chwarel event, but maybe of interest! There’s going to be limited tours into the MASSIVE chambers at Maenofferen - the first time the chambers have been open to members of the public since the last of them closed in the late 90's.The chambers are as they were left by the miners - see the machinery, buildings and much more on your journey around Maenofferen. No lights (except head torches), no music, just pure mine exploration... Tours will take place on 20, 21, 27 and 28 April

For details see the facebook event page here or the Slate Mountain website here