Prehistoric Wales: lost lands of ancestors
A new booklet invites people to explore the lost lands of ancestors beyond the current Welsh coastline.
Prehistoric Wales - published by Dyfed Archaeological Trust - tells how the rich homelands were drowned as global warming in the wake of the last great Ice Age caused a dramatic rise in sea levels.
Footprints which are 6,000 years old can still be seen in areas such as Lydstep beach in Pembrokeshire, preserved in hardened peat deposits.
Charlotte Dubenskij spoke to Ken Murphy, director of Dyfed Archaeological Trust and Karl-James Langford of Archaeology Cymru.