Explores The legend of Lyonesse, the mythical land said to have once connected Cornwall to the Isles of Scilly before being swallowed by the sea. Deeply entwined with Arthurian legend and the tale of Tristan, Lyonesse represents both loss and immortality. Archaeological evidence of ancient submerged forests and changing sea levels hints at real geological events behind the myth. Today, Lyonesse endures in Cornish folklore as a haunting echo of vanished lands and timeless memory.