Dan Yr Ogof Caves Discovered This Day (Dec 27th) in 1912.
From the Welsh Calendar
One of Wales' premier tourist attractions was discovered on this day in 1912. Two local farmers ( Tommy and Jeff Morgan ) first explored the caves by candlelight. They armed themselves with a revolver as a precaution. The caves , which were voted "the greatest natural wonder in Britain" in a 2005 poll of Radio Times readers, are now open to the public.