Cantre'r Gwaelod, also known as Cantref Gwaelod or Cantref y Gwaelod, is a legendary ancient sunken kingdom said to have occupied a tract of fertile land lying between Ramsey Island and Bardsey Island in what is now Cardigan Bay to the west of Wales. It has been described as a "Welsh Atlantis" and has featured in folklore, literature, and song.
Part of an ancient submerged forest at Ynyslas thought to be associated with Cantre'r Gwaelod
Submerged forest remains, March 2008
Submerged forest remains, details, March 2008
Preserved tree stump on Borth sands near Ynyslas
Cardigan Bay is a large inlet of the Irish Sea, indenting the west coast of Wales between Bardsey Island, Gwynedd in the north, and Strumble Head, Pembrokeshire at its southern end. It is the largest bay in Wales.
Cardigan Bay
Sunset over Cardigan Bay from Gwbert