All along this beach at low tide are the remains of tree stumps, this view looking from Ynyslas towards Borth. Celtic legend tells the story of the land flooding here. The Lowland Hundred or Cantre'r Gwaelod – Ruled by Gwyddno Garanhir, the low-lying kingdom was protected from the sea by a series of dykes and sluice gates. One stormy night, the appointed watchman Seithennin - a heavy drinker - was at a party and left the water gates open. The land was flooded and disappeared under the waves. Radio carbon datings are between 3500 years old for the ones close to Borth and 5500 years old at Ynyslas.