The world-famous Icehotel in Jukkasjärvi is just outside Kiruna, Sweden’s northernmost town, which itself is worth a visit. The world’s largest underground iron ore mine, a magnificent view of the mountains, plenty of fresh air – it’s nearly always windy – and a population who are completely obsessed with being outdoors. The further north you go, the more chance you have to see the midnight sun in summer and northern lights in winter.