The border between Northern Ireland the the Republic of Ireland runs through Lough Foyle. For 1843 Magazine (the culture, lifestyle and ideas magazine from The Economist), Garrett Carr has taken a trip round a lake that could soon divide Britain from Europe. If you haven’t read it, by the way, I thoroughly recommend Carr’s book about Ireland’s border country, The Rule of the Land (Faber & Faber), which was short-listed for the 2017 Stanford Dolman Travel Book of the Year.