Arki and Marathi, just north of Patmos and Lipsi, are the most peaceful islets in the Dodecanese chain. The former is home to only 55 inhabitants, who make a living from farming, goat breeding and fishing. The turquoise-ometer of the water? Off the scale! Expect an eclectic mix of yachties, artists and the occasional backpacker. There are neither cars nor motorbikes – just calmness. Pack your books, bathers and headphones and leave chaos behind.