Serifos is a quintessential Greek isle. Whitewashed houses and cobblestone streets curve around the bay on this virtually untouched island in the western Cyclades. Dramatic, mineral-rich landscapes and windmills make cinematic backdrops for hiking and exploring local markets and Serifos’ olive oil factory museum. Scuba in pearl-green waters and explore Psili Ammos, one of its numerous immaculate beaches.