Andorra is the world’s 16th smallest country by area, and the 11th smallest by population, with only just over 75,000 residents in the whole principality. Such is the mountainous terrain of its 180 square miles that while only 1.7% of its surface is arable, there are 350 kilometres worth of ski runs. No prizes for guessing what is the biggest contributor to Andorra’s GDP then. One of the reasons we were looking forward to Andorra is that we don’t know much about it. OK, so we know that it’s one of Europe’s smallest countries, that it’s a mountain country high up in the Pyrenees with plenty of winter ski resorts,…