Moving through time along Bae Ceredigion/Cardigan Bay, we arrive at today's climate crisis.

Sarn Gynfelyn is revealed every low tide and looks like a road into the sea. In fact, it is a glacial moraine laid down 20,000 years ago when ice sheets melted, and it marks the beginning of the global conditions that have enabled human expansion.

At Borth, a 6,000 year old forest flourished for a few thousand years. Submerged by the sea, it has since been re-exposed in recent storms. Sarn Gynfelyn and Borth’s forest are both cited as supporting the Cantre'r Gwaelod legend of lost fertile lands in Cardigan Bay, but the geology tells a different story.

Moving forwards, we arrive at Fairbourne, a seaside town built on saltmarsh and English industrial wealth. It is now set to become the first UK town to be decommissioned due to sea level rise. It will be demolished and returned to salt marsh and will have existed for less than 200 years.

In the intertidal zone, between land and sea, three people move, with arresting visual imagery through these three remarkable sites.