How to Spend a Day on the Greek Island of Nisyros

Twinkling turquoise seas, chalky white cubist architecture and rugged mountainsides characterise almost all of the Greek Islands, from the Ionian in the west all the way to the Dodecanese in the east. Santorini is often pegged as the most stunning, thanks to its abundance of iconic white and blue buildings speckling the hillsides, and Skiathos…