PARANORMAL experts convinced the National Showcaves of Wales are haunted by the ghost of a woman spent the night there last night.
Members of South Wales Paranormal Research spent 24 hours underground at the caves at Dan-yr-Ogof in the Upper Swansea Valley.
Their initial investigations managed to confirm "a presence" within the showcaves with a female voice being heard clearly as well as knocking sounds.
The group's chairman, Steve Cluer, said, "We know that no one has managed to spend a night in the showcave section first discovered by the Morgan brothers in 1912. Many people have tried but they have all come out during the night and we want to find out why they felt so uneasy and decided to leave."