Sea lettuce is nourished from the estuaries by decades of run-off from intensive dairy farming and nutrients from human sewage. Illustratration: Michael Viney

The waking of spring in the ocean can only be guessed at from the pale, bare sweep of a surf-edged Mayo strand. But out around the islands and beyond,(...)

‘When it comes to the marine, we’ve a pretty good record of selling off the family silver, or even giving it away.’ Above, John Fitzgerald takes Lorna Siggins on a seaweed foraging tour. Photograph: Valerie O’Sullivan

There can be few more pleasurable ways to acquire a spot of Latin than wading through cool, clear Atlantic waves off a southwest Kerry beach. I(...)