Dooey Peninsula, Co. DonegalI nearly missed it. I'd been working my way along the coast near Meenlaragh, ready to turn back, when the sand patterns beneath the shallows stopped me dead. Pale gold bleeding into deep turquoise, these long curved ridges shaped by tidal flow, shifting every few hours into something entirely different. I held position and just watched. From altitude, the whole structure of this coastline reveals itself. That long sandy spit holding the Atlantic back