Wicklow boasts one of Ireland’s most varied coastlines. From Bray Head’s rocky outcrop to Brittas Bay’s rolling sand dunes, the landscape is almost limitless in its drama, and that’s before we even get to the mountains. In short, it’s the kind of landscape to leave romanticists salivating, and accordingly has been the subject of artists, musicians and storytellers for generations.  Its latest muse is Fionn Regan, who returned to the coastline of his home county for his sixth LP, Cala. Since recording his Mercury-nominated debut The End of History in Bray, it’s fair to say Regan has been on somewhat…