Here’s my piece on Istria and its colourful winemakers published in the latest issue of Imbibe magazine: It’s a rather surreal experience to traverse four countries in the space of half a day.  But that’s often how it works when a visit to Istria, Croatia’s most northwesterly outpost, is on the cards.  From London to an ex-army base-turned airport outside Trieste in northern Italy, you must then go by car through Slovenia to get to Croatia. Perhaps it’s this relative remotene