The nightmare happened - a long way down a very loose cave in an earthquake on sat situated on  the South Wales  Neath disturbance zone thought to be a major structural movement zone since at least Paleaozoic times when boom boom , sounded like Cardiff had been nuked ! no sign of ground shaking  but  I swear that the rift was tighter on the way out than on the way in ! chris crowley

Any rotten eggs smell?  :-\