The skeletal trees are said to have given rise to the local legend of a lost kingdom, Cantre’r Gwaelod, drowned beneath the waves. The trees stopped growing between 4,500 and 6,000 years ago, as the water level rose and a thick blanket of peat formed.
This year a great swath of the lost forest has been revealed. Last month archaeologists also found a timber walkway nearby, exposed by the storms.
It has been dated to between 3,100 and 4,000 years old, built as the local people found ways to cope with living in an increasingly waterlogged environment.
Two years ago human and animal footprints were found preserved in the hardened top layer of peat, along with scatterings of burnt stones from ancient hearths.