If you’ve ever noticed sheets of what appears to be a translucent brown plastic film covering the rocks and the sand where the surf rolls in, you’ve seen the seaweed known in Wales as laver (or sloke in Ireland). If you’ve ever enjoyed sushi you…

Poised between the windswept coast and the stony volcanic spine of the land above Fishguard and Goodwick, the Pencaer peninsula’s acid soil has never borne rich harvests. Pembrokeshire’s early potato crop has become famous but once upon a time root…