
Karen Davies, 54, found her Fiat had disappeared bonnet first when she finished her shift working as a castle assistant.
Her son Luke, 30, said his mother parked in her usual spot but was later told by colleagues about the sinkhole shock.
Luke, of Coelbren, Powys, said workers tried to tow the car out but the sinkhole at the Craig Y Nos Castle, near Swansea, South Wales, was 20ft deep.
He said: 'She was in shock and at first she thought it was a joke. The car was upside down.
A customer was in the car park when it started sinking - they saw it happen and how it gradually went down.












Comment: Global cooling: Record-setting early snowfall covers the top of Hokkaido mountain in Japan