According to Welsh legend, Cantre’r Gwaelod was land inhabited by humans that became flooded by the sea through human neglect and folly. It was situated in what is now an area of sea in Cardigan Bay, Wales. There are many different versions of this legend which attempt to explain how a once rich and fertile land succumbed to the sea. There are also similar versions that exist in the British Isles referring to different locations. Another famous one originating outside of Britain comes from Brittany, France concerning the once beautiful city of Ys and of course there was Atlantis.
Gwyddno Garahir of Cantre’r Gwaelod
The ruler of the land was Gwyddno Garahir. In Welsh legend there are many rulers named Gwyddno but this one was said to be the sire of Elffin ap Gwyddno, who was the foster father of Taliesin the legendary Welsh bard. Gwyddno Garahir, or Gwyddno Long-Shanks in English, was also reputed to be the keeper of one of the Thirteen Treasures of Island Britain which was said to be a magic basket which caused any food placed in it to multiply one hundred times. His main fortress was Caer Wyddno or Fort of Gwyddno and said to be situated to the northwest of the modern seaside town of Aberystwyth. According to this version around 600 AD a great storm blew out of the south west one night forcing the tide against the sea walls of the dyke. Read more