On Thursday 14th May, PembsNTA members travelled by coach to Dan yr Ogof caves.The tour of the caves was at people’s own pace, taking in the audio commentary en route. After lunch, the tour progressed to National Trust Aberdulais Tin Works.There a former manager gave a detailed talk about the history of the site.     Thanks go to Tim Sims-Williams for organising the trip, and to Jane and Alan Mason for the photographs.              Click  to see Jane Mason’s full report of the day.